this is bbc news. the headlines: russia accuses ukraine of a drone attack on the kremlin. kyiv denies having anything to do with it. a teenage suspect is detained after a children and a security guard shot dead at an elementary school in belgrade. in one of the biggest police operations against one of italy's biggest mafia syndicates, there are dozens of arrests across europe. first of this hour, russia's presidential offices to drones attacked the kremlin in moscow last night. officials blame ukraine and

believe it was an assassination attempt on president putin. let's take you straight to these videos claiming to show the attack. this is the moment of the explosion coming up the moment of the explosion coming up now. there it is. that is circulating on social media. it appears to be a drone flying in from the left hand side before that explosion. we can't be sure of course. this is unverified footage at the moment. here is the drum from another angle, again not verified. shortly you will see the smoke coming up. according to our teams the videos do appear to be taken at the videos do appear to be taken at the time and location claimed. ukraine has denied carrying out any attack and claims russia is using this accusation as a cover to launch

an attack. earlier i spoke to wil vernon in our moscow bureau and i were russia editor at bbc monitoring. started by asking will what exactly the russian authorities have said. the what exactly the russian authorities have said. , ., ., have said. the statement from the kremlin saying _ have said. the statement from the kremlin saying ukraine _ have said. the statement from the kremlin saying ukraine used - have said. the statement from the kremlin saying ukraine used to - kremlin saying ukraine used to drones to attack the kremlin buildings last night. it said russian forces managed to bring those drums down and that there were no injuries and the president himself was not hurt. although they did say it was an assassination attempt on president putin. it's not absolutely clear what actually happened but these videos have been emerging on social media showing a fire and smoke and an explosion around one of the kremlin buildings. if what the kremlin is saying is true then it raises questions about how well protected the president is. he seems to be one of the most well

guarded leaders in the world. when my colleagues and i have been at events, the level of protection is huge. an enormous security detail, enormous convoys, a space closed, traffic halted, that kind of thing. but questions will be asked about the effectiveness of russian air defences because in recent months we have spotted a number of air defence systems that have been placed in strategic locations around moscow usually in the vicinity of key buildings such as the defence ministry, precisely for this reason. the kremlin is nervous that ukraine or those sympathetic to ukraine will launch aerial attacks against russian targets. i think that a drone attacks are getting more and more common and they seem to be creeping closer and closer. just this morning there was a drone

attack in a region near the occupied ukrainian region of crimea which caused a huge fire. a number of other incidents in previous days, explosions, strange incidents. two trains were derailed in a region near the border with ukraine yesterday and the day before the local governor blamed those on improvised eclipse explosive devices. so i think these incidents are becoming more common and serious and causing a lot of nervousness here in russia, especially among ordinary russians.— ordinary russians. thank you for that. ordinary russians. thank you for that also _ ordinary russians. thank you for that. also whether _ ordinary russians. thank you for that. also whether this - ordinary russians. thank you for that. also whether this is - ordinary russians. thank you for that. also whether this is vitaly | that. also whether this is vitaly shevchenko from bbc monitoring. give us a bit of context. it is potentially _ us a bit of context. it is potentially very - us a bit of context. it is i potentially very significant development. if this was indeed a

ukrainian — development. if this was indeed a ukrainian attack on the kremlin, possibly— ukrainian attack on the kremlin, possibly targeting the russian president himself, this would be the first time _ president himself, this would be the first time as far as we know that the russian leader or a leader involved — the russian leader or a leader involved in this war is being targeted. but there are various questions — targeted. but there are various questions being asked about whether ukraine _ questions being asked about whether ukraine is— questions being asked about whether ukraine is actually interested in this _ ukraine is actually interested in this we — ukraine is actually interested in this. we have two statements from key officials in kyiv, the presidential spokesman and presidential spokesman and presidential adviser. presidential spokesman and presidentialadviser. both presidential spokesman and presidential adviser. both of them say the _ presidential adviser. both of them say the same thing, that everything ukraine _ say the same thing, that everything ukraine has at its disposal it is using — ukraine has at its disposal it is using to — ukraine has at its disposal it is using to defend itself rather than attack— using to defend itself rather than attack russia. in both of these ukrainian _ attack russia. in both of these ukrainian officials have said it's

possible — ukrainian officials have said it's possible that russia might use this incident _ possible that russia might use this incident tojustify an possible that russia might use this incident to justify an attack on ukraine — incident to justify an attack on ukraine. so the big question now is how it _ ukraine. so the big question now is how it happened and who carried it out. , , ., how it happened and who carried it out. , , . ., out. just a little earlier we went to k iv out. just a little earlier we went to kyiv to _ out. just a little earlier we went to kyiv to our— out. just a little earlier we went to kyiv to our correspondent - out. just a little earlier we wentl to kyiv to our correspondent who gave me the ukrainian reaction. the ukrainians gave me the ukrainian reaction. tue: ukrainians are gave me the ukrainian reaction. tte: ukrainians are rejecting gave me the ukrainian reaction. t"t2 ukrainians are rejecting they gave me the ukrainian reaction. tt2 ukrainians are rejecting they have anything to do with this alleged drone attack. we heard from a presidential spokesman here rejecting any ukrainian involvement. what's interesting is that we also heard from an adviser to president zelensky who not only rejected any ukrainian involvement with these alleged attacks but also said this could be an indication that moscow is preparing to launch a large—scale

attack against ukraine. the senior adviser also said carrying out an attack like this wouldn't change the situation on the battlefield for kyiv and would only give russia the excuse to carry out more attacks targeting the civilian population. so the ukrainians have so far kind of involvement in rejected any kind of involvement in this alleged drone attack. what's interesting here is the context because we have seen there has been an increase in military activity from both sides as the ukrainians say they are now finishing their plans for a much anticipated counteroffensive to try to take back territory that is now under russian occupation. so we've seen in the last few days they have been explosions in russia and russian —controlled territory. russia has targeted cities across the country. this morning we had more attacks

targeting kyiv and other cities across ukraine. so this latest claim by moscow happens as both sides are preparing for this much anticipated ukrainian counteroffensive. ordinarily president zelensky would be in kyiv but is not there. he has made a rare foreign trip and these pictures are lively believe. he is in finland meeting with nordic leaders. he is in helsinki and he is speaking right now. we will keep across whether he addresses the issue of the drone attacks. we will bring you any notable lines that come out of that. let's go back now to speak to bbc russia. this is an

extraordinary claim and counterclaim, that effectively these two drums trying to assassinate president putin as claimed by russia and ukraine saying it's nothing to do with them and it could easily be a ploy by russia to set up a false pretense for an attack. are we any closer to knowing what's going on? this is a significant story and a highly symbolic attack. either it was conducted as a false flag operation by the fsb. it's the first time in modern history when the kremlin itself is under attack which is really striking fear that the

explosion was near the russian flag over the building which is known as the official resident of the president. however, we also know that president putin seldom uses the residents, he only comes the high—profile international state visits like last month when the chinese leader xi jinping arrived visits like last month when the chinese leader xijinping arrived in moscow. that is the place where the meeting with him was held. in other cases president putin usually uses his palace near moscow or his other residences inside russia. the kremlin press secretary said president putin did not have an intention to come to the kremlin yesterday as he was spending his day in his residence near moscow. it's questionable whether it was an attack with an attempt to assassinate president putin or it

was just a symbolic attack to show the possibilities of the ukrainian unmanned aircraft to strike the centre of moscow.— unmanned aircraft to strike the centre of moscow. give us an update on the significance _ centre of moscow. give us an update on the significance of— centre of moscow. give us an update on the significance of the _ centre of moscow. give us an update on the significance of the timing - centre of moscow. give us an update on the significance of the timing of. on the significance of the timing of this. a significant day in the russian calendar coming up. russia is preparing — russian calendar coming up. russia is preparing for _ russian calendar coming up. russia is preparing for its _ russian calendar coming up. russia is preparing for its annual— russian calendar coming up. russia is preparing for its annual victory i is preparing for its annual victory day parade on the 9th of may and the parade will still take place and they have no intention of cancelling it for now. if they do it would be the first time in years. they were cancelled in 2020 but that was during the pandemic. it will also be very symbolic if they decide to cancel it. another significant

detail is the explosions appeared on some local groups of those people in the city centre of moscow and sm moscow time but only 12 hours later after the kremlin announced they had been an assassination attempt, only at that time those were picked up by the media. so it's also quite surprising because of the stories when there were explosions and drones falling from the sky, those lines were picked up by russian media immediately. but not in this case. ., ~' media immediately. but not in this case. ., ~ , ., media immediately. but not in this case. . ~ ., ., media immediately. but not in this case. . ., ., , case. thank you for that as we try and understand _ case. thank you for that as we try and understand an _ case. thank you for that as we try and understand an extraordinary. and understand an extraordinary development in moscow. the other developing story over the last couple of hours has been that school shooting in serbia, in belgrade. we

are getting new details and they are understandably distressing. eight pupils and a security guard have been killed in that school shooting. these are pictures from the outside as you can see. police have arrested as you can see. police have arrested a 13—year—old pupil who went to that school. he is said to have walked into the history lesson, shut the teacher, shot pupils and opened fire on all in front of him. we have some details about the level of planning, lists of names of pupils. police say they are investigating the exact motives. three days of national mourning have been declared. our belgrade correspondent reports. handcuffed and hooded, belgrade police took the suspected shooter for questioning. he is just ia years old. parents and teachers were left in shock.

this sort of thing just doesn't happen in serbian schools, despite high levels of gun ownership. any gun crime is rare and mass shootings in classrooms are unheard of. police say the suspect arrived at the school on the morning after the labor day holiday. first he argued with a security guard at the entrance of the vladislav ribnikara school, then he pulled out a gun and shot him. parents say their children have told them what happened next. the shooter entered a history class, fired at the teacher and then turned his weapon on his classmates. translation: the teacher immediately i sheltered the children, locked them i in, some of them were under the tables so they were safe inside. after i don't know how much time, they let them out. police believe the suspect used a gun owned by his father. it is one of serbia's's worst ever mass shootings, the shock is being felt throughout the country and people will be desperate to know why it happened. guy delauney, bbc news.

doctor helena even of works at the london school of economics and focuses on the relationship between propaganda and violence against civilians. what was your reaction when you first heard the news a few hours ago? t when you first heard the news a few hours auo? ., , when you first heard the news a few hours ago?— hours ago? i am still in absolute shock. hours ago? i am still in absolute shock- this _ hours ago? i am still in absolute shock. this is _ hours ago? i am still in absolute shock. this is the _ hours ago? i am still in absolute shock. this is the saddest - hours ago? i am still in absolute shock. this is the saddest news | shock. this is the saddest news serbia has ever heard in the first thing i wish to say is i offer my condolences to the families and everyone affected. this is really unheard of in serbia. mass shootings especially in schools have never happened, nor do i rememberthem. today we had a press conference during which the health minister said she had never seen a situation like this and very similar comments were heard from the chief of police. everyone is still in shock and most of us cannot believe this happened.

it's an interesting point about the country that there are potentially lots of weapons they because of historical conflicts and yet despite that these types of crimes are extremely rare. t that these types of crimes are extremely rare.— extremely rare. i think that is because whilst _ extremely rare. i think that is because whilst going -- - extremely rare. i think that is because whilst going -- gun i because whilst going —— gun ownership is quite high, the weapon carrying is not something which is really encouraged in serbia or celebrated and that is one of the reasons why we have not had a chance to hear about these kinds of things happening before. but of course the motives are still very much in the long and i guess that is the key question. as soon as we know why this happened we can then institute policies that can prevent something like this happening in the future. we all want to think about this as an isolated incident that is something which is just the beginning of something that could repeat itself again. tt is

beginning of something that could repeat itself again.— repeat itself again. it is almost impossible _ repeat itself again. it is almost impossible question _ repeat itself again. it is almost impossible question but - repeat itself again. it is almost impossible question but when l repeat itself again. it is almost - impossible question but when events like this happen what kind of things should be done?— like this happen what kind of things should be done? when encouraging thin is should be done? when encouraging thing is that — should be done? when encouraging thing is that all— should be done? when encouraging thing is that all government - thing is that all government representatives have made it quite clear that the first and foremost thing will be to provide mental health for anyone who needs it right now and to try and create new policies which can prevent events like this happening again. the first thing is to understand the motives and then institute the adequate policies that prevent this. there are lots of questions to be we know this child that committed this crime when shooting with his parents. stricter control and what parents can and cool —— can and can't do with the children when it comes to guns is one step forward. adequate investigation of when peer violence is happening school as necessary. a lot of these things also circulate on social media and understanding the kind of content children are exposed to and controlling the

access they have certain content is also crucial because they are all young and are different things will impact them a different degree. but it's very hard to say anything more concrete now because we are all still in shock. taste concrete now because we are all still in shock.— concrete now because we are all still in shock. we appreciate your thou~hts. still in shock. we appreciate your thoughts. around _ still in shock. we appreciate your thoughts. around the _ still in shock. we appreciate your thoughts. around the world - still in shock. we appreciate your thoughts. around the world and i thoughts. around the world and across the uk, this is bbc news. look at this bay, it's absolutely beautiful today and we have to be 100% sure before we do anything that could damage this beautiful environment. a canadian company called planetary plans to capture and store carbon in these waters by pumping in an alkaline mineral called magnesium hydroxide. it's called magnesium hydroxide. it's called the community concerned but the question remaining why here? plumtree says after extensive

research on potential sites the cornish coast provides the ideal conditions because the water is shallow and turbulent and the currents keep water near the surface for a long time. a very small trial took place last autumn and the environment agency has asked for more information on the potential impact on this marine habitat in the climate credentials are under scrutiny. as more questions are being asked the company hopes for a due second trial looking uncertain. you live with bbc news. the government has praised the police for their quick response after a man was arrested after shotgun cartridges with or enter the grounds of buckingham palace last night. a complex security operation is in place for the coronation this weekend walsh will be attended by leaders and royalty from around the world. with her today there will be

more than 11,000 police officers on duty. rehearsals for the coronation were held overnight in central london. overnight they did a controlled explosion and stressed there was no connection to terrorism and no one was hurt describing it as a mental health incident. the king wasn't in residence at the time. but it's incidents like these that police have been preparing for. we've spent months planning _ have been preparing for. we've spent months planning this _ have been preparing for. we've spent months planning this event _ have been preparing for. we've spent months planning this event and - have been preparing for. we've spent months planning this event and the i months planning this event and the work that has gone on between the met police and other police forces around the uk and other intelligence services to make sure we know as much as possible what's going on and where incidents could occur. home

much as possible what's going on and where incidents could occur.— where incidents could occur. none of it dela ed where incidents could occur. none of it delayed a — where incidents could occur. none of it delayed a huge _ where incidents could occur. none of it delayed a huge military _ where incidents could occur. none of it delayed a huge military rehearsal. it delayed a huge military rehearsal overnight with thousands of serving personnel because on saturday hundreds of millions of people will be watching. the hundreds of millions of people will be watching-— hundreds of millions of people will be watchinu. ., ,, ., _, be watching. the groups have come from all parts _ be watching. the groups have come from all parts of _ be watching. the groups have come from all parts of the _ be watching. the groups have come from all parts of the armed - from all parts of the armed services _ from all parts of the armed services. it's the first time they will he — services. it's the first time they will be brought together on the actual— will be brought together on the actual streets on the ground they're going _ actual streets on the ground they're going to _ actual streets on the ground they're going to use on the day so it was a bil going to use on the day so it was a big test— going to use on the day so it was a big test but— going to use on the day so it was a big test but went very well. they will be to procession _ big test but went very well. t“t2 will be to procession through london. the smaller first procession from buckingham palace to the abbey will see the king and queen consort travel by carriage down the mall to trafalgar square before heading to the abbey. the return coronation procession will use the same route but will be much larger. so security remained tight here this weekend over the weekend to make sure everything goes smoothly. police here is the too. a tourist

attraction for those visiting in their own right. this is the first time many will have seen a coronation and it will be a big job for those on duty. the us surgeon general has declared loneliness and epidemic. he is the first surgeon general to issue an advisory on it and in a report on tuesday conveyed the health risks of social isolating to smoking a dozen cigarettes a day. his office is proposing a national framework to rebuild social connection and community in america. about one and two americans is experiencing measurable levels of loneliness and in a recent study america spentjust 20 minutes a day with friends, that's down from 60 minutes two decades ago. less time with friends left no feeling of isolation. young people are feeling the strain more than most. those aged between 15 to 2a reported a 70%

drop in time spent with friends during that same period. i am joined now by the programme director at campaign to end loneliness. what is your assessment of the scale of the problem? t your assessment of the scale of the roblem? ~ , , ., ., , problem? i think this is a really excellent report _ problem? i think this is a really excellent report which - problem? i think this is a really excellent report which outlines| problem? i think this is a really - excellent report which outlines both the scale of the problem and the very serious impact it has. making international comparisons about loneliness is not straightforward. my loneliness is not straightforward. my sense would be there are greater issues of loneliness in the us than the uk, nevertheless we have definitely seen an impact on levels of loneliness as a result of covered 19 and it causes a great deal of serious human suffering in the uk and something which is important.

you mention that human suffering, in what form? people talk about feeling lonely, what are the problems associated with that? the lonely, what are the problems associated with that?- associated with that? the first thin to associated with that? the first thing to say — associated with that? the first thing to say is _ associated with that? the first thing to say is that _ associated with that? the first thing to say is that a - associated with that? the first thing to say is that a little - associated with that? the first thing to say is that a little bit l associated with that? the first. thing to say is that a little bit of loneliness sometimes is unpleasant but what we are really worried about is when loneliness becomes chronic, when day—to—day life feels very lonely. that is something which people —— which matters to people a great deal. the knock—on effects on our mental and physical health are really serious and are up there with the major health risks and it also makes it much harderfor us to function well the rest of our lives, whether it is at school or work or the role we play in our communities.

what about the role of social media? is there a direct correlation? iloathed is there a direct correlation? what we have found _ is there a direct correlation? what we have found is _ is there a direct correlation? what we have found is that _ is there a direct correlation? what we have found is that it's - is there a direct correlation? transit we have found is that it's not so much the amount of time that people spend on social media, it's more about how they do it. so some time people spend on social media, it can be encouraging people to compare themselves with other people, so looking at some kind of platforms that are all about people looking glamorous and people showing their amazing lives and people start comparing with that and that can really drive loneliness. there are also ways in which social media can drive bullying as well. 20 years ago if you are being bullied at school it stayed at school but now it comes in your bedroom.— it stayed at school but now it comes in your bedroom. thank you very much for cominu in your bedroom. thank you very much for coming on —

in your bedroom. thank you very much for coming on the _ in your bedroom. thank you very much for coming on the programme - in your bedroom. thank you very much for coming on the programme and - for coming on the programme and talking us through that. do stay with us on bbc news. hello. it's turning into a pleasant day for many parts of the country with more sunshine around. we do have a weak weather front scotland bringing more cloud and a little rain. the south easterly breeze will be developing as that area of high pressure moves away. that's been keeping it dry but also chile just recently is that moves away and we start to see a south—westerly wind in the next few days. things will get a bit warmer. these temperatures late afternoon, peaking at 16 or 17. a bit chilly for eastern scotland and down the north sea coast. that breeze will be more noticeable than i. it will push away that range from mainland scotland and moved up towards the northern isles. otherwise it should be dry with breaks in the cloud. what is called

as last night. temperatures around five degrees. for many places we start right tomorrow with sunshine. more cloud coming into eastern scotland and north—east england as the breeze picks up and we will see the breeze picks up and we will see the breeze picks up and we will see the breeze blowing in cloud into the south—west and pushing the cloud into northern ireland. across these areas it's going to be cooler than today. also cool across the east of scotland and north—east eglin. a bit warmer with wind across parts of the midlands. temperatures reaching 19 degrees. we've got that rain coming into the south—west and that will push its way in during the evening. the rain not really amounting to too much heading up towards scotland on friday but it will be followed by some sunshine but also increasing them ma's of showers. these could turn heavy and potentially thundery. the wind starting change more to the

south—west but in scotland we got the wind of the north sea and hence those lower temperatures. they will be quite a few showers around, those will tend to move away overnight. with all weather coming in from the south—west things are looking more and settled as we head into the coronation weekend. there will be some rain around, it's going to turn wet on saturday. probably sunday the driest of the few days. some heavy showers returning on monday.

time for a bit of sport now. sam allardyce has taken charge of a training session at leeds united for the first time — having taken over as managerfrom javi gracia. having taken over as spaniard gracia, appointed in february, has been dismissed afterjust ten weeks and 12 games in charge at elland road. allardyce is tasked with guiding leeds to safety with four games remaining. they are currently out of the bottom three but only on goal difference. a tough first game for him, though — against leaders manchester city on saturday. it is probably the biggest challenge because of the shortness of games