believes this is credible and says it had warned russia about large gatherings in moscow being vulnerable. but russia's fsb security agency has said some of the suspects fled towards ukraine — and had contacts there. ukraine denies this. louisa pilbeam has the latest. shooting people dive for cover as machine gun fire breaks out in a rock concert. there is shooting here, this man says, as he films the panic. people are running, everyone is yelling. some managed to get out of the lobby, running for their lives. this woman filmed herself hiding with others in the chaos, trying to find an exit. she got out, but others were not so lucky. thousands of people had gathered at the crocus city hall in moscow when gunmen broke in and began shooting and then stalked the rows of seats for people hiding. soon the whole building was on fire. the venue is one of the largest and most popular music venues in russia. far from the city centre, security would have been light, an easy target for the attackers. translation: i heard gunshots and saw the terrorists come - in and start shooting people, they threw petrol bombs and everything started burning. now as the death toll rises, emergency crews searched the rubble for anyone who could have survived this and those who did not. russia says this was an act of terror. translation: investigators - are seizing weapons and ammunition from the crime scene which are currently being examined. genetic fingerprints and ballistic examinations are being carried out on the evidence and specialists have begun to study is recording from cctv cameras. late last night, a branch of the islamic state group claimed responsibility for the killings. the us said it had warned russia about this kind of attack. the state department, our embassy there, put out a notice to all americans in moscow to avoid any large gatherings, concerts, shopping malls, anything like that. what is known is this is the deadliest attack for 20 years in the country and it has shocked russia. the country's security forces have made arrests but the man hunt continues for the other attackers who escaped. louisa pilbeam, bbc news. just to bring you the latest, the islamic state group have released a photo of what it claims were the four attackers behind the attack on the concert hall. at least 115 people are killed in that attack and more than 100 injured as well and president putin has also been speaking within the last hour. this comes 19 hours after that initial attack, let'sjust comes 19 hours after that initial attack, let's just listen into comes 19 hours after that initial attack, let'sjust listen into some of what he had to say. translation: mil of what he had to say. translation: �* .,, ., translation: all those who were shootinu translation: all those who were shooting and _ translation: all those who were shooting and killing _ translation: all those who were shooting and killing people - translation: all those who were shooting and killing people were . shooting and killing people were found and detained. they tried to hide and were moving towards ukraine where, according to preliminary information, from the ukrainian side a window to cross the border had been prepared. altogether, 11 people were detained. federal security services of russia work on finding the whole base of support of the terrorists. those who provided transport for them, planned ways to leave the scene of the crime, prepared the hiding places with weapons and ammunition. president putin there speaking _ weapons and ammunition. president putin there speaking in _ weapons and ammunition. president putin there speaking in the - weapons and ammunition. president putin there speaking in the last - putin there speaking in the last hour. 0ur russia editor steve rosenberg has this update from outside the concert hall. so, the building behind me is the crocus city hall, and the first thing that you notice when you come here isn't the sight of the building, it's the smell. the air is still thick with smoke because the concert hall was burning all night. this was one of the most famous concert venues in russia, but yesterday it became a bloodbath when gunmen went on the rampage here, killing dozens of people and leaving russia in shock. now, throughout the morning, russians have been coming here, bringing flowers, laying the flowers at a makeshift shrine and trying to comprehend what has actually happened here. and among the people here are russians who saw the news on television and felt they had to come. there are people who had friends here yesterday, and there are also people who were here themselves during the shooting. i spoke to one woman who recounted her nightmare, the nightmare she went through. she told me that she managed to get out and the first thing she did when she got home was to hug her children tight. steve rosenberg there. we arejust going we are just going to bring you some pictures of russians in moscow queueing up to donate blood following that attack on friday night. at least 120 people injured in the attack, also reported that the russian national football team would bejoining those the russian national football team would be joining those and the russian national football team would bejoining those and donate blood. the uk's foreign secretary, lord david cameron, is the latest western politician to condemn the attack. 0n x, he wrote... we've been hearing from people caught up in the attack, via videos posted to social media. one of the first who published video from inside the hall was a russian blogger pavel shampanov. when the attack started, he recorded this video into his social media. translation: we are at a concert in the crocus city. _ some kind of shooting is taking place here. a lot of people are running, everyone is shouting. gunfire. screaming. gunfire. someone is shooting here. they are shooting from rifles, they are shooting into people. that was one person caught up in that attack. and here is another person — a photographer dave primov — who says he was inside the building when the shooting took place. translation: i was sitting in the hall upstairs - where the balconies were. we heard gunshots. at first, we didn't understand what was happening. then i personally saw how the terrorists came in and started shooting everyone. in the end, they threw a petrol bomb, everything was set on fire. we were led to the exit. it turned out the exit was locked. we ran all over the crocus city trying to find an exit but to no avail and we went into the basement of the crocus city hall and waited for the emergency services and got out. a description there from an eyewitness, the chaos and confusion, trying to leave that concert venue. ukraine has been accused of being involved in the attack, they have denied that. earlier, i spoke to our eastern europe correspondent sarah rainsford, who is in kyiv. i asked her what the fsb has been saying about the attack in moscow. this was a long statement from the fsb about the attack, about their theories and their investigation. but the kind of crunch line, if you like, for ukraine came towards the end when this statement said that the suspects, those suspected of carrying out this attack on the crocus city mall in moscow had then fled the scene and that they were heading towards ukraine. and according to this statement, the fsb said that they were planning to cross the border into ukraine and that they had contacts here on the ukrainian side. now, i'vejust spoken to a spokesperson for military intelligence here in ukraine, and he has called that absolutely absurd. he made the point quite clearly that that area, specifically on the border with ukraine between ukraine and russia, the region that was referred to by the fsb, is absolutely full of intelligence security services, full of military at the moment. there's an ongoing military operation. there is an active frontline in that area. we were on the other side of the border just the last couple of days. there are people fleeing from that border area. so it's an active military area. and he said that to suggest that terrorists fleeing a terrorist attack would head to specifically that region would suggest they were either idiots or suicidal. so ukraine very quickly dismissing any suggestion that this is linked to ukraine, that ukraine was in any way involved. but certainly since the very beginning, there have been fears here in ukraine that russia would try to point the blame somehow towards ukraine as an excuse for escalating its war on this country, which, of course, has been devastating ukraine now for more than two years. yeah. what did ukraine have to say on this? because i understand a top adviser, had had made a video statement. what did he say in response to those accusations? yes. we heard from the presidential adviser. we also heard from the foreign ministry late last night, as this news was coming in from moscow. there were statements from defence intelligence as well. so lots of very quick statements from here in ukraine absolutely categorically ruling out any link whatsoever to the attack in moscow. he talked about what he said. he said ukraine is fighting russia on the battlefield and that is where the war will be fought and ukraine says will be won. he also said that ukraine would not be involved in this kind of attack on civilians inside russia. he ruled it out. absolutely, as i say, so did the foreign ministry here. but, you know, there were a lot of people worried because when they were watching that news coming in, you know, the real fear here is that russia is looking for an excuse to escalate things — looking for an excuse — particularly, i think the view here in ukraine is to rally support around this war, to boost support for vladimir putin's war on ukraine, in order, ukraine believes, to get more soldiers to sign up for the cause — in order for vladimir putin to be able to announce a general mobilisation of the population so that he has more soldiers to continue prosecuting his war. that is the fear, the worry here in ukraine, because, of course, that would mean even more missile attacks, rocket attacks, military activity, which has huge and devastating consequences for people here in this country. that was sarah rainsford. earlier, i spoke to bbc monitoring'sjihadism specialist, mina al—lami. she told me about is as they claim responsibility for the attack. last night, the statement was put out by is, it was very brief, it did not have many details, saying why they did the attack at this time against russia, it came from the so—called news agency of the islamic state, it said they carried out the attack, that there were soldiers of the islamic state that were involved and it said they attacked a crowd or crowds of christians, that is how they described it, and they said the attackers then fled the scene safely, in their words, and that no—one was caught or killed in the attack, it did not say how many attackers were involved so that was really the extent of the claim. it did not attribute the attack to any of its regional branches, as you said, is has global branches around the world and there's been a lot of speculation that the afghanistan—focused province branch — which is widely known as isis k — was behind the attack but it's important to say that is itself has not indicated that that branch or any other branch was responsible for orchestrating that attack, it simply put out a general claim of responsibility. what does that mean? they arejust saying it is under the is umbrella, is that what they are saying? yes but they are likely to issue a follow—up claim to detail which branch was responsible. the way the is media operates is in many cases it attacks outside its area of activity, outside syria, iraq, africa, the so—called news agency of is would put out an initial, very brief and general claim with no details of the branch and then that would be followed with a detailed claim assigning a certain branch. sometimes it willjust mention the country and say for example paris or london, like i said, in cases where it does not have a branch but it is worth mentioning in that region, in russia, is claims to have a branch called the caucasus province branch according to is and it has been active since 2015, i say active, activity is very low with very rare attacks mostly in russian republics like dagestan and chechnya but not in mainland russia. is has carried out a number of attacks over the years, many years ago in mainland russia but these were very small, low—key attacks, a stabbing here, small attack there but nothing on the scale of the attack we saw yesterday. that was mina al—lami speaking to me earlier. just to follow up on a couple of points she mentioned there, she did say that there would be some sort of follow—up statement from the islamic state group. there has indeed been that in the last hour, if anything, has indeed been that in the last hour, ifanything, not has indeed been that in the last hour, if anything, not specifically attributing the attack to the branch we have been hearing about, the is cave that we have been hearing about but they confirmed that four is members were responsible for that attack, publishing their photo and they did this via one of their channels and off the back of that, as part of that statement, saying the reason, the motivation for the attack comes within the context of what they describe as a raging war between the islamic state group and countries fighting islam. that was part of the latest statement coming from is but no confirmation of exactly which branch it was. more of course on our website. we arejust going we are just going to bring you an update concerning the news that the princess of wales yesterday confirming that she is now receiving treatment, preventative chemotherapy for a cancer diagnosis following abdominal surgery. we understand, the bbc understands, that many people have been reaching out and giving her support. we understand that the duke and duchess of sussex themselves reach out privately to themselves reach out privately to the prince and the princess of wales following that announcement of her cancer diagnosis. there is no further details including how they reached out but they did, of course, say that they wish them healing as a part of her recovery. an outpouring of support for her, for the princess of support for her, for the princess of wales, following that video announcement, that video statement, she herself admitting that the diagnosis had come as a huge shock and that she is in the early stages of chemotherapy. kensington palace has said it is confident the princess will make a full recovery. 0ur correspondent laura trant has more. the last official appearance of the princess of wales with the royal family at sandringham on christmas day, where she stopped to speak to the crowds. thank you so much. that is very sweet of you to come and say hello to us. very happy christmas. three weeks later, catherine was in hospital for major abdominal surgery. as we now know, it was in post—operative tests that cancer was found. but in the weeks after surgery, speculation mounted. and this mother's day photo that prompted conspiracy theories and further speculation led to the princess saying she had edited the image. then the sudden change of plan, where prince william pulled out of his godfather�*s memorial service, king constantine of greece. we now know this was around the time catherine would have received her diagnosis and treatment plan. since catherine released her statement, there has been an outpouring of support from across the globe and closer to home in london. we really feel for her and she is very brave. the fact she said giving hope to other people with cancer when she is in so much pain herself says a lot for her. i when she is in so much pain herself says a lot for her.— says a lot for her. i 'ust feel for them, i wouldn't _ says a lot for her. i just feel for them, i wouldn't wish - says a lot for her. i just feel for them, i wouldn't wish that - says a lot for her. i just feel for| them, i wouldn't wish that upon anyone — them, i wouldn't wish that upon anyone and the whole country, royalist — anyone and the whole country, royalist or— anyone and the whole country, royalist or not, should be with them from a _ royalist or not, should be with them from a humanitarian point of view and think— from a humanitarian point of view and think about how they are feeling and think about how they are feeling and their_ and think about how they are feeling and their children as well. she and think about how they are feeling and their children as well.— and their children as well. she is a aood and their children as well. she is a good advert _ and their children as well. she is a good advert for — and their children as well. she is a good advert for st _ and their children as well. she is a good advert for st andrews - and their children as well. she is a good advert for st andrews and i and their children as well. she is a good advert for st andrews and so and their children as well. she is a i good advert for st andrews and so is prince _ good advert for st andrews and so is prince william — good advert for st andrews and so is prince william so _ good advert for st andrews and so is prince william so good _ good advert for st andrews and so is prince william so good wishes - good advert for st andrews and so is prince william so good wishes to - good advert for st andrews and so is prince william so good wishes to alll prince william so good wishes to all of them, _ prince william so good wishes to all of them, including _ prince william so good wishes to all of them, including prince _ prince william so good wishes to all of them, including prince charles. l prince william so good wishes to all of them, including prince charles. i| of them, including prince charles. i had bowel— of them, including prince charles. i had bowel cancer— of them, including prince charles. i had bowel cancer myself _ of them, including prince charles. i had bowel cancer myself and - of them, including prince charles. i had bowel cancer myself and it - of them, including prince charles. i had bowel cancer myself and it is. of them, including prince charles. i had bowel cancer myself and it is a| had bowel cancer myself and it is a tough _ had bowel cancer myself and it is a tough thing — had bowel cancer myself and it is a tough thing for _ had bowel cancer myself and it is a tough thing for your— had bowel cancer myself and it is a tough thing for your family - had bowel cancer myself and it is a tough thing for your family as - had bowel cancer myself and it is a tough thing for your family as well| tough thing for your family as well as yourself— tough thing for your family as well as yourself so _ tough thing for your family as well as yourself so wish _ tough thing for your family as well as yourself so wish her— tough thing for your family as well as yourself so wish her all- tough thing for your family as well as yourself so wish her all the - as yourself so wish her all the best — as yourself so wish her all the best. , , ., , ., as yourself so wish her all the best. , ., , ., ., ., best. just goes to show that no matter who _ best. just goes to show that no matter who you _ best. just goes to show that no matter who you are, _ best. just goes to show that no matter who you are, this - best. just goes to show that no l matter who you are, this horrible disease _ matter who you are, this horrible disease can— matter who you are, this horrible disease can get anyone, doesn't matter— disease can get anyone, doesn't matter whether you are famous, who you are, _ matter whether you are famous, who you are, it _ matter whether you are famous, who you are, it is— matter whether you are famous, who you are, it isjust devastating for them _ you are, it isjust devastating for them. hopefully she will get through it. it them. hopefully she will get through it. ., , them. hopefully she will get through it. . , ., ., , them. hopefully she will get through it. it was a real big shock and hopefully _ it. it was a real big shock and hopefully she _ it. it was a real big shock and hopefully she can _ it. it was a real big shock and hopefully she can pull- it. it was a real big shock and | hopefully she can pull through it. it was a real big shock and - hopefully she can pull through and have the treatment and get better. that's all i'm sure the great british public want.- that's all i'm sure the great british public want. that's all i'm sure the great british ublic want. . h ., ., , british public want. she's one of my favourite royals _ british public want. she's one of my favourite royals so _ british public want. she's one of my favourite royals so i _ british public want. she's one of my favourite royals so i was _ british public want. she's one of my favourite royals so i was very - british public want. she's one of my favourite royals so i was very sad i favourite royals so i was very sad to hear— favourite royals so i was very sad to hear about it actually. whatever treatment — to hear about it actually. whatever treatment she needs, i really hope it works _ treatment she needs, i really hope it works for— treatment she needs, i really hope it works for hand as she recovers well _ it works for hand as she recovers well l— it works for hand as she recovers well. ., ~' ., it works for hand as she recovers well. ., ~ ., ., ., well. i work on social media so we have seen — well. i work on social media so we have seen some — well. i work on social media so we have seen some horrible - well. i work on social media so we have seen some horrible things i well. i work on social media so we| have seen some horrible things go well. i work on social media so we . have seen some horrible things go on and people having different opinions, comments and peoplejust really need to respect privacy and what she is going through force of it is heartbreaking, i know quite a lot of people who have gone through cancer and ijust lot of people who have gone through cancer and i just feel like lot of people who have gone through cancer and ijust feel like people need to back off and appreciate the time. for the prince and princess of wales, the priority has been to protect their children prince george, princess charlotte and prince louis and they will spend time privately over the easter holiday as a family. there won't be a full return to official duties for the princess of wales while she takes the time and space she needs. laura trant, bbc news. we can speak now to afua acheampong—hagan, journalist and broadcaster. welcome to the programme. the hope it really is once kate has told us what you she is going through. aha, what you she is going through. a very painful and personal thing to be going through, that speculation will stop and she and the family will stop and she and the family will be allowed to continue on their journey through this awful disease. has it, is it likely to? i journey through this awful disease. has it, is it likely to?— has it, is it likely to? ithink it will after— has it, is it likely to? ithink it will after we _ has it, is it likely to? ithink it will after we have _ has it, is it likely to? ithink it will after we have got - has it, is it likely to? ithink it will after we have got through j has it, is it likely to? | think it- will after we have got through this initial period of this weekend and into monday. in that statement, she requested the privacy to be able to process this information and going through that diagnosis and it is incredibly difficult with three young children, george charlotte and louis, they are young. after we have got through this 48 hour period, 72 hours where it is going to be all across the papers and people will be talking about it, i think that the press at least will back off and give them the time and space they need and they deserve to be able to go through this. over the easter holidays, they will probably spend that time in norfolk and that is a community that holds them close, gives them their privacy, will allow them to be able to process that. so i think they will get at the time they need to be able to heal and to be able to go through this diagnosis as a family. be able to go through this diagnosis as a famil . �* , be able to go through this diagnosis as a famil. �*, ., ., ., be able to go through this diagnosis asafamil. �*, ., ., ., ., , as a family. let's go to that latest line that has _ as a family. let's go to that latest line that has come _ as a family. let's go to that latest line that has come to _ as a family. let's go to that latest line that has come to us - as a family. let's go to that latest line that has come to us that - as a family. let's go to that latest line that has come to us that the l line that has come to us that the duke and duchess of sussex whether one is to privately reach out to the prince and princess of wales. the significance of this? i prince and princess of wales. the significance of this?— significance of this? i think it is significant _ significance of this? i think it is significant that _ significance of this? i think it is significant that they _ significance of this? i think it is significant that they reached i significance of this? i think it is | significant that they reached out privately. we had a statement from them yesterday, it was quite short, it said they wished health and healing for kate and the family and hoped they were able to do so privately in peace. i think the fact they have reached out to the wales family privately is really significant because we know that relationship particularly between prince william and prince harry has been frosty at best. virtually no relationship for the past couple of years after the release of the harry and meghan documentary and of course, prince harry's book spare. the fact they have taken this opportunity, the sussex family to reach out to the wales family is very good and a good sign, health is a great leveller, makes you realise what is really important in life and let's hope this signifies a defrosting in the relationship between these two brothers. thank ou ve between these two brothers. thank you very much _ between these two brothers. thank you very much indeed. _ let's turn to the middle east now. the un secretary—general, antonio guterres, has renewed call for a humanitarian ceasefire in gaza during a visit to egypt today. mr guterres has been speaking at the rafah border crossing where hundreds of lorries on the egyptian side are waiting to take basic aid into gaza. israel is still under mounting international pressure to allow more aid into gaza. and that's amid warnings of imminent famine. this is what he had to say. it is time for an ironclad commitment by israel for total unfettered access for humanitarian goods throughout gaza. and in the ramadan spirit of compassion, it is also time for the immediate release of all hostages. i also urge every member of the united nations to support our life—saving work led by the backbone of all gaza relief operations, unrwa. we look forward to continuing to work with egypt to streamline the flow of aid and deeply appreciate the full egyptian engagement in support of the gaza people. this is bbc news. some impressive cloud scopes out there today. some sunshine but these big shower cloud brings a very heavy doubt pause of rain, a bit of thunder and lightning thrown in, some wintry showers over a high ground in the north. here it is on the satellite picture, these lumpy shower clouds pushing south eastwards across the uk. just about wherever you are throughout the rest of the day, you could see a shower, some of the show was heavy with hail and thunder full stop still wintry of the highest ground in scotland, above 500 or 600 metres elevation. windy out there, particularly gusty for western and northern coasts and so that is affecting the feel of the weather, temperatures on the four monitor nine or 10 degrees. factor in the strength of the wind, the fields like temperature, including wind chill, around five or 6 degrees. as we head into the evening, if you showers around, some more persistent rain and mountain snow across some parts of eastern and north—eastern scotland. elsewhere, most of the showers will fade through the night. it will stay fairly blustery, the winds easing down across western parts but staying windy enough to stop temperatures dropping to five. three, four or 5 degrees for most of us into tomorrow morning. we start tomorrow with this very weak ridge of high pressurejust tomorrow with this very weak ridge of high pressure just trying to build its way in. that will give us a window of drier and quieter weather. still quite windy close to the east coast as we start the day with one or two showers. we keep some showers in north of scotland, wintry of a high ground. through the afternoon, clouds gathering towards west. that may bring a little bit of rain into western counties of northern ireland through the second half of the afternoon. temperatures a little bit up and where they are today, around 11 or 12 degrees. through sunday night and into monday, this frontal system tries to push its way in from the west. there is still a little bit of uncertainty around how much progress this front will make northwards and eastwards, i think the greatest chance of rain on mondays across south—west england, also parts of wales, northern ireland, but it may be that this wet weather ends up pushing a little further north and if it gets into scotland, that could give some snow. at this stage, it looks like just some wintry showers in scotland. many parts of the uk largely dry. showers are longer spells of rain, the chance of snow especially over high ground of scotland. temperatures slowly creeping upwards. this is bbc news. the headlines: president putin has said the attackers behind last night's mass shooting in moscow were arrested trying to flee to ukraine and he promises they will be punished and a number of unverified _ promises they will be punished and a number of unverified videos have been circulating on the app telegram purporting to show some of those involved in the attack. meanwhile, the islamic state group claims it carried out the attack which has killed more than 100 people and released a photo it claims shows those who were responsible. meanwhile, an outpouring of support for the princess of wales who has revealed in a video message she is in the early stages of cancer treatment and she said the disease was discovered after she underwent abdominal surgery injanuary. and in the middle east, the un secretary—general course for an immediate ceasefire to allow aid into rafah. ! calls for. —— calls for. now on bbc news, the travel show: thailand: protecting paradise. thailand's landscapes are like something from a dream... ah! imean... i mean, look at this. this is absolutely stunning! ..from dazzling coastlines to lush countryside and wildlife that will take your breath away. visions of paradise that in normal times attract more than 30 million of us every year. but that weight of numbers isn't necessarily good news for this country's fragile natural heritage. the boats are disturbing the sediment and that also harms