at least 133 people were killed in the assault, when masked men burst into the venue friday, firing indiscriminately, and detonating explosives. in the russian capital, people have been leaving flowers and lighting candles. memorials also appeared outside russian embassies in several countries — and armed police have been patrolling the area around the crocus city hall. in a televised address, mr putin called it a "barbaric terrorist act" and connected ukraine to the attack. that's despite the islamic state group claiming it carried out the mass shooting. ukrainian president, volodymyr zelensky, reacted angrily to accusations his country was involved. translation: one more thing, what ha--ened translation: one more thing, what ha ened in translation: one more thing, what happened in moscow _ translation: one more thing, what happened in moscow yesterday, - translation: one more thing, what happened in moscow yesterday, it - translation: one more thing, what happened in moscow yesterday, it is. happened in moscow yesterday, it is obvious that put and other scumbags are just trying to find someone else to blame. their methods are always the same. we've seen it all before, destroyed buildings, shootings and explosions, and they are always looking for someone to blame

our russia editor, steve rosenberg, has been to the scene of the attack — and a warning, you may find some of the details in his report, upsetting. it was hard to believe that only yesterday this was a concert hall. in what was left of crocus city, the full horror of what had happened became clear. the attackers had torched the building. a rock concert became an inferno. shooting. but first, the gunmen had opened fire. to kill as many of the audience as possible. in one constant stream of bullets. russia says the four gunmen who did this have been arrested, and claims they planned to cross into ukraine. kyiv denies any connection to the attack. it's islamic state that's claimed responsibility. president putin promised vengeance.

translation: all the perpetrators and organisers of this crime - and those who ordered it will be justly and inevitably punished. whoever they are, whoever is guiding them, those terrorists, murderers, monsters face the same unenviable fate — retribution and oblivion. in moscow, there were long queues to donate blood for the many who'd been wounded in the attack and rushed to hospital. outside crocus city hall, a hint of the devastation inside. the first thing you notice here isn't the sight of the building — it's the smell. the air is thick with smoke because the concert hall was burning all night. and the next thing you notice is what's happening over there — people are bringing flowers, creating a makeshift shrine to the dead. margarita knows she's lucky.

she was in the building when the shooting began and got out alive. translation: when i got home, i hugged my children, _ fell to my knees and said, "i can't begin to describe what happened there. they were shooting at us." i was hysterical. my husband could barely watch. the children were terrified. theyjust hugged me. but so many died here. there were so many victims of the deadliest attack in russia in 20 years. president putin has declared a national day of mourning. steve rosenberg, bbc news, moscow. as we've been hearing, the islamic state group has said it was behind the attack, but president putin says the gunmen were trying to flee to ukraine. that's an allegation kyiv has described as �*absurd'. so what do we know about those who may have launched the attack? here's our security correspondent, gordon corera. gunfire chaos and confusion as gunmen begin shooting inside the concert hall at crocus city. this footage, verified by the bbc

shows the gunmen in the foyer. but who are they? isis, the group calling itself islamic state, today issued a statement said its men, seen here, were responsible. that is not something we can independently confirm and the issue of who was responsible is deeply contentious. more than two weeks ago, the us issued this warning to its citizens in moscow, saying what it called extremists thought to mean isis might target large gatherings, including concerts. it communicated the intelligence directly to moscow. but three days before the statement a kremlin statement was issued in which vladimir putin dismissed that warning, describing it as provocative and an attempt

to destabilise russia. the russian security services say they stopped this car and that the four men involved in the attack have been arrested. but rather than say anything about isis, the kremlin suggested they were heading away from the scene and towards ukraine. that might be an attempt to deflect the blame there and away from moscow. one of russia's tv channels even broadcast this last night. a fake video of a top ukrainian security official suggesting ukraine was involved. bbc verify has established two different videos were put together to make this, with the words most probably generated by artificial intelligence. after any attack there are always questions about whether it could be stopped. but in this case those questions look especially difficult for moscow. gordon correra, bbc news. the united nations chief, antonio guterres visited the rafah crossing on saturday making a renewed call for an immediate ceasefire in gaza. his call came as the hamas run

health ministry in gaza said 19 people waiting for aid were killed by israeli forces. israel has denied firing on the crowd. mr guterres said it is time to silence the guns and stop the nightmare — describing the ongoing loss of life in gaza as a moral outrage. the un estimates 1.1 million people in gaza are struggling with catastrophic hunger and starvation. mr guterres called on israel to give "total, unfettered" access to humanitarian goods throughout the territory. it is finally to flood gaza with life—saving aid. the choice is clear, either search or starvation. let's choose the side of help, the side of hope in the right side of history. our middle east correspondent hugo bachega is also in egypt near the rafah crossing — he sent us this update on efforts to get into gaza.

this is the egyptian side of the rafah crossing with gaza, and one of the main entry points for humanitarian assistance into the territory. and here, hundreds of trucks are waiting to be allowed to enter gaza. now, western officials, aid groups have been criticising israeli authorities for this inspection process. they say that it is extremely slow and they say some of these trucks have been turned away because they have been carrying some items that have been banned by the israeli authorities, such as medical equipment and sleeping bags. some of these trucks have been here for weeks waiting for these inspections. and the un says more than 1,500 trucks are here in egypt. and obviously, the humanitarian situation in gaza is worsening. today, antonio guterres is back here, the un chief is again calling for a humanitarian ceasefire in gaza

and for israeli authorities to do more to allow more humanitarian aid into gaza. this visit happens just days after a un backed report says half of gaza's population of 2.2 million people face catastrophic levels of hunger and that famine in northern gaza was imminent if there was no pause in fighting and a surge in aid. well a little earlier, i spoke to james elder, a unicef spokesperson who is in rafah on the gaza side. he described the current conditions. this is absolutely horrendous in rafah, where i am now. a population of 300,000 is now closer to 1.5 million. people on the streets, sanitation has broken down. not enough access. i don't know if you can hear it now, i can hear bombs now, that might be in rafah, it might be next door in khan younis.

khan younis is devastated, i've never seen that level of annihilation on the city in my 20 years with the united nations. hospitals are utterly nonfunctional. two thirds of them at least, and people in the north, you know can you drive past, doing that universal sign of hunger, much less the children who are dying of famine like conditions or even in famine. it is a moral outrage and families are living through this day in, day out, somehow incredulously it's getting worse. with me to discuss is david hale, global fellow with the wilson centre and former us ambassador to pakistan, lebanon, and jordan. it is great to have you here. ijust want to start with what we saw there with the un secretary—general on the egypt side of this rafah crossing, again calling for an immediate cease—fire. are there any signs, you think i'm about that could be on the cards anytime soon?— think i'm about that could be on the cards anytime soon? obviously there have been intense _

cards anytime soon? obviously there have been intense negotiations - cards anytime soon? obviously there| have been intense negotiations going on. the country has been a key player in this. the united states, israel, egypt and others to try to get a cease—fire, but the parties are primly getting closer, they've not quite reached a deal. 0bviously not quite reached a deal. obviously the intention is to have a cease—fire for an exchange of hostage release and see if that can be built into a longer—term cessation. be built into a longer-term cessation.— be built into a longer-term cessation. , ., . cessation. the un security council failed to pass _ cessation. the un security council failed to pass a _ cessation. the un security council failed to pass a resolution - cessation. the un security council failed to pass a resolution that - failed to pass a resolution that would call for an immediate cease—fire in gaza linked to a release of hostages. russia and china use their vetoes. this almost seems like a reversal of roles because we'd seen the us vetoing similar proposals. what did you make of that scene there at the un on friday? i of that scene there at the un on frida ? ., ~' , . , friday? i worked in the security council myself _ friday? i worked in the security council myself and _ friday? i worked in the security council myself and i _ friday? i worked in the security council myself and i don't - friday? i worked in the security council myself and i don't want | friday? i worked in the security l council myself and i don't want to diminish the importance of actions in the security council, but often they really don't have much bearing on the situation on the ground. they are more about manoeuvring and public relations than they are with contributing to real—life improvements for the people who are suffering from this war. i think the important thing really is to focus

on our own efforts by laterally and with other like—minded countries to try to bring hamas and israel to a point where they both find an interest in having a cease—fire and then the un can come in and ratify that. , . ~ then the un can come in and ratify that. , ., ~ ., then the un can come in and ratify that. , ., «u,, , that. lets talk about those efforts. us secretary _ that. lets talk about those efforts. us secretary of _ that. lets talk about those efforts. us secretary of state _ that. lets talk about those efforts. us secretary of state making - that. lets talk about those efforts. us secretary of state making his . us secretary of state making his sixth visit to the region since this war broke out. he's been meeting with leaders, is there anything more he can do? it does seem to feel as if the us �*s influence over any kind of cease—fire is waning. if if the us 's influence over any kind of cease-fire is waning.— if the us 's influence over any kind of cease-fire is waning. if you look at the history _ of cease-fire is waning. if you look at the history of _ of cease-fire is waning. if you look at the history of israel's _ of cease-fire is waning. if you look at the history of israel's responsesj at the history of israel's responses to the kinds of attacks that occurred on october the 7th 2006 with hezbollah, the 1980s with beirut, typically american presidents don't tell israelis how to conduct a war. 0nce presidents don't tell israelis how to conduct a war. once they have reached a point where there is no longer really a military goal that can be obtained, we need to help guide them into a diplomatic and political process that makes sense and can stabilise and improve the situation. so hope that soon we are

able to do that. but don't detect at this point a realistic game plan for the day after on a part of israel or the day after on a part of israel or the united states at this stage. it was interesting to see as well that we know there was some sort of discussion, at least from mr blinken going forward some sort of peace plan, he is pushing for a two state solution. he's pushing for the palestinian authority to govern gaza. do you think that those plans are something that israel might agree to? i are something that israel might aaree to? ., �* are something that israel might aaree to? j , are something that israel might aareeto? .,�* , , agree to? i don't believe so. these no back agree to? i don't believe so. these 90 back to — agree to? i don't believe so. these 90 back to a _ agree to? i don't believe so. these 90 back to a g-7 — agree to? i don't believe so. these go back to a 6-7 meeting - agree to? i don't believe so. these go back to a 6-7 meeting where i agree to? i don't believe so. these| go back to a 6-7 meeting where the go back to a 6—7 meeting where the secretary of state outlined seven or eight principles among those included. it's a new reality today of the middle east, and old solutions may not be the ones that are able to tackle the new realities. so while we all made dream and want a two state solution and want moderates to be in charge in gaza, we are a long way from getting to that point. particularly the psychological climate among

palestinians and israelis after all the violence is going to be a very, very tall wall to climb over. we know that _ very tall wall to climb over. we know that mr _ very tall wall to climb over. we know that mr blinken was in cairo, meeting with several other leaders in the region. he did not meet with iran, but iran does have a role to play here, not only in the conflict but in any sort of peace process or cease—fire going forward. that's a very important point to bear in mind, iran is a major player here. aha, mind, iran is a major player here. major protagonist. while we have to have solutions that address the real needs of israelis and palestinians, we have to also recognise the israelis are capable of blocking us and trying to block us from achieving those goals. if you look at who is the biggest opponent of a two state solution, who is the biggest advocate for violence, it is iran. so we have to have a strategy that also takes into account the iranian problem and puts pressure on them so they are not able to be spoilers. them so they are not able to be soilers. �* , ., ., ., spoilers. briefly, we have about a minute left. _ spoilers. briefly, we have about a minute left, but _ spoilers. briefly, we have about a minute left, but we _ spoilers. briefly, we have about a minute left, but we have - spoilers. briefly, we have about a minute left, but we have seen - minute left, but we have seen increasing pressure now the biden administration, group of democratic senators, we saw more than 70 former

us officials essentially calling to restrict military assistance to israel if humanitarian aid does not begin to flow into gaza. do you think the restrictions on aid could be something that the us are the biden administration might begin to consider? . �* , biden administration might begin to consider? ., �* , ., , biden administration might begin to consider? ., �*, ., , ., biden administration might begin to consider? ., ., , . consider? that's really a domestic olitical consider? that's really a domestic political calculation, _ consider? that's really a domestic political calculation, but _ consider? that's really a domestic political calculation, but i - consider? that's really a domestic political calculation, but i would . political calculation, but i would hesitate to advocate for it because i don't believe that it would be helpful in getting the israelis to act in a responsible way. the more they feel isolated and in threat, they feel isolated and in threat, the more likely they are to continue to take strong extreme actions, exactly what we don't want them to do. they need to know the united states has them behind her back and how to move from a military vase to a political phase.— a political phase. david, global fellow with _ a political phase. david, global fellow with the _ a political phase. david, global fellow with the wilson - a political phase. david, global fellow with the wilson centre, | fellow with the wilson centre, former us ambassador to pakistan, lebanon and jordan, thank you very much. lebanon and jordan, thank you very much. . ., lebanon and jordan, thank you very much. ., ~ i. in a newly released statement, kensington palace says the prince and princess of wales are both "enormously touched" by the public response to catherine's announcment

that she is receiving treatment for cancer. in a video released friday, catherine said the diagnosis came as a "huge shock," and that she's in the early stages of chemotherapy. 0ur royal correspondent, daniela relph has more. this is the national with erica johnson. | catherine, the princess of wales, made a shocking announcement... making headlines globally. kate middleton... the impact of the princess's diagnosis has been felt far and wide. her video message was the most direct and personal we have ever seen the princess. this, of course, came as a huge shock... . it was also an attempt to shut down the rumours. i think what the princess of wales is hoping is that this message will be direct enough to appeal to people's better natures and say, look, the invasion of privacy that has been going on, on social media for the last couple of months has just been way too much.

people need to stop and think and not engage in that kind of activity going forward. and now a fresh statement from kensington palace, a public thank you. it said... family has rallied around the princess, including those with whom relations are strained. the duke and duchess of sussex sent a public message of support. the bbc understands they have also reached out privately. in windsor today, where the prince and princess live, public sympathy remains strong. we've been thinking of her all along and wish her the best. they're going through something so private and hard and, you know, the public eye on it, it's really tough, to be honest. yeah, she's got young kids, right? and she's a human being, so i thought it was - all quite upsetting. protecting her three

children has been a priority for the princess of wales. she said she's taken time to explain and reassure george, charlotte and louis. i think it's really important, when parents are approaching, talking to their children about their cancer diagnosis, that they plan it, they think about it carefully. and also they get the right support to help them deal with the emotions that it creates in them. the new message from the prince and princess is both a thank you and a polite warning. they now want to be left alone. we don't expect to hear from them over the easter holiday. instead, we may see the king back in the royal spotlight. christmas at sandringham, the last full gathering of the royal family. next sunday, many will be back for the easter church service in windsor. buckingham palace are hopeful that the king will also be there. daniela relph, bbc news.

in revealing her diagnosis, her royal highness made sure to speak more widely — to all people suffering with cancer. her message: don't give up hope. but how to do that when facing such a daunting diagnosis? for more, i spoke to dr william dahut chief scientific officer of the american cancer society. thank you forjoining us. catherine, certainly not alone when it comes to a cancer diagnosis, so many people have been affected, what are some ways that we can support them? yeah, i think it is really _ ways that we can support them? yeah, i think it is really difficult _ ways that we can support them? yeah, i think it is really difficult for _ i think it is really difficult for the individual who has the cancer diagnosis, even beyond simply the cancer treatment. diagnosis, even beyond simply the cancertreatment. i diagnosis, even beyond simply the cancer treatment. i think that discussion with loved ones, family members, friends, you know, is also really difficult. so i think one needs to be thoughtful about that. here you have a cancer diagnosis,

petrified about what could really be a life—threatening event, and then you need to share this with people who you love who you are going to immediately upset. in some ways you've actually changed your role, in some ways you become the physician who is telling somebody about cancer, only it is your cancer. so you can see how hard that cancer. so you can see how hard that can be for folks. cancer. so you can see how hard that can be forfolks. so cancer. so you can see how hard that can be for folks. so that is why it is really important to be particularly supportive of the cancer patient as they explain information about their cancer not to ask too many questions, allow for privacy. people always say, you know, what can i do? and patients almost always say i'm good, i'm fine. so one piece of advice that we have, a lot of this is on our web page, is not to simply say what can i do, but to say what you are going to do. what kind of pizza do you like? bring overa to do. what kind of pizza do you like? bring over a pepperoni pizza on tuesday night. and also work with

the caregiver, because that caregiver who is helping the cancer patient i think working through that person oftentimes you can find out which is really need to come and talk to the caregiver, and not simply say what can i do, i think concrete things particularly with the caregiver to my being thoughtful about the communication about the cancer diagnosis kind of to allow for privacy but coming up with thoughtful ways to be helpful is probably the most effective. i think one of the things _ probably the most effective. i think one of the things from _ probably the most effective. i think one of the things from the - probably the most effective. i think one of the things from the video i one of the things from the video message from catherine that really resonated with a lot of people is she said she needed to take the time to explain the situation to her young children and to reassure them that she was going to be ok. how can families talk about cancer with young children? that seems to be a pretty difficult conversation to have. ii pretty difficult conversation to have. , ., ~' pretty difficult conversation to have. ~ ., pretty difficult conversation to have. ~',, , _ pretty difficult conversation to have. , have. if you think about simply as i talked about _ have. if you think about simply as i talked about earlier, _ have. if you think about simply as i talked about earlier, trying - have. if you think about simply as i talked about earlier, trying to - have. if you think about simply as i talked about earlier, trying to tell. talked about earlier, trying to tell somebody, you know, your sister,

your mum, telling her young child is particularly difficult. really upsetting for a parent to upset their child who they are trying to protect, so i think a couple of things number one, children are actually much more perceptive than one may imagine, and they often know something is going on. so i think it's important to be as honest as possible. you need to sort of let folks know, your kids know it is a serious illness and let them know there is a plan for what is going on so they understand things. kids oftentimes blame themselves, so you need to reassure them it's not their fault because they didn't do their homework, they yelled at their younger brother or sister, that wasn't the reason why. the titrate explanation based on the individual child, some kids can actually understand and want to know more and others don't want to know anything

at all. some of at his age, or maybe gender—based. and in divide individualise the information you give. but kids have some time to process it, be honest, let them know it is serious, don't overwhelm them and make sure they know it is not their fault. and make sure they know it is not their fault-— their fault. briefly, if you don't mind, i their fault. briefly, if you don't mind. i want — their fault. briefly, if you don't mind, i want to _ their fault. briefly, if you don't mind, i want to come - their fault. briefly, if you don't mind, i want to come back- their fault. briefly, if you don't mind, i want to come back to i their fault. briefly, if you don't i mind, i want to come back to one other thing she said do not lose faith or hope, you are not alone. what effect do you think the princess picking up so publicly about cancer might do overall for awareness about cancer around the world. i awareness about cancer around the world. ., �* , awareness about cancer around the world. ~ �* , . , awareness about cancer around the world. ~ �*, . , ., world. i think it's incredible a owerful world. i think it's incredible a powerful and _ world. i think it's incredible a powerful and incredibly - world. i think it's incredible a - powerful and incredibly meaningful. i think it's great that someone could see a young vibrant woman with a cancer diagnosis in a situation

where you can see the impact of the cancer, others look like someone walking down the street, i think the fact that people can see there is someone out there who might look like them and that's what the doctors are saying screening and early detection, some things we know that can actually lead to a better outcome, but there is also this tremendous fear of having this diagnosis and to see someone like her get up and say we can do this together i think it would have an incredibly powerful impact. thank you for shedding light on a discussion that is not always easy to have. thank you. let's turn to some important news around the world. at least seven people have been killed in heavy rainstorms near rio

de janeiro in brazil. the rain triggered a landslide that destroyed homes. rescuers have been searching through the rubble. one man was struck by lightning on a beach. and the driver of a truck drowned after their vehicle fell into a river. the us states of missouri and louisiana are holding their presidential primaries on saturday. presidentjoe biden and former president donald trump have already secured enough delegates to become their parties' presumptive nominees. but the primaries give the two the chance to secure even more. mr biden will appear in the democratic primary in both states. republicans will vote only in louisiana as missouri already held caucuses earlier in the month. some of the world's most famous landmarks have gone dark. they're taking part in �*earth hour�*, to raise awareness of environmental issues and the impact of climate change. the sydney opera house in australia joined the sydney harbour bridge in turning out the lights. injapan — this is the tokyo tower plunging into darkness. hong kong's shimmering victoria harbour and glittering city skyline also darkened as part of the campaign.

and here's bangkok s iconic temple of dawn, going dark. stay with us here on bbc news hello there. well, it's certainly been a lively start to the weekend weatherwise. loads of showers around on saturday, some of them with hail and thunder, some of them with mammatus clouds — always a sign of a good storm. now, the showers that went through south parts of greater london, around kent, they really dumped the temperatures. look at that — ten degrees at midday, just two degrees celsius a couple of hours later in the afternoon. that would have felt really cold, especially with those gusty winds. now, over the next few hours, many of the showers will tend to become confined to more northeastern areas of the uk should

become drier over the next few hours in the west. temperatures as we head into the first part of sunday morning, quite chilly around 3 to six degrees celsius. now, sunday will continue to be dominated weatherwise by this area of low pressure — it's the same one that we had on saturday, but it's starting to pull away into the near continent, but still influencing our weather. certainly there'll be lots of showers across northern areas of scotland and a few affecting the east coast of scotland running down east and coastal counties of england as well. some of the showers for these areas will continue to be quite heavy with some hail, whereas across western areas of the uk many areas should have a dry day with some bright or sunny spells. temperatures for most about 10 to 12 degrees — that's average for the time of year. northern scotland, about six to eigh,.tthat�*s a little on the cool side. then into monday, we get another area of low pressure forming and moving in off the atlantic.

this is going to be bringing further outbreaks of rain on monday to northern ireland, wales and western areas of england. probably a dry and bright day for eastern areas of england. the rain starts pushing northwards across scotland and starts to move into the chilly air that we have here. temperatures just six in aberdeen. so through monday night we might actually start to see some of that rain turn to snow. it is going to be quite high up in the high hills of scotland, probably above 300 metres elevation or so, but that could continue to be a risk into tuesday. so you might see a little bit of snow on some of the very high—ish scottish routes in the north. otherwise at lower elevations it's just outbreaks of rain, sleet and a bit of hail that you'll see mixed in. a cold day on tuesday — temperatures around nine or ten for england and wales, just five there in aberdeen. so overall, we're looking at a very unsettled week ahead, a cold start to the week, yes, but it does tend to turn milder as the week goes by. bye for now.

this is bbc news. we will have the headlines of the top of the hour which is straight after this programme. hello and welcome to talking business with m. let's have a look at what's on the show. the global obesity epidemic, more than a billion people across the world are obese with warnings the disease could threaten our financial stability. the crisis is currently on track to drain trillions of dollars from the global economy as it drags on productivity and health systems. so just how big a problem is this and what can be done? i'll be discussing all of that with these two. there they are, the chief executive

of the world 0besity federation and the chief medical officer at weightwatchers. and also on the show, providing the nuts and bolts to power the ai revolution. i catch up with the boss of the digital tech giant cisco systems on its latest moves in the world of machine learning. wherever you'rejoining me from around the world, once again, a big hello and a warm welcome to the show. obesity is defined as abnormal or excessive fat accumulation in the body that presents a risk to health. and more and more of us across the world are falling into that category. the good news is that the percentage of the world's population who are underweight is declining. but obesity is now the most common form of malnutrition in most countries. they can mean too much as well as too little food. and it comes with a hefty price tag. the causes of weight gain are complex, and it's important when we talk about the economic impact of the disease that the costs

are not attributable to individual behaviour,