this is bbc news. these are the latest headlines in the uk and around the world. in a phone call with ukraine's leader, president biden says he'll respond "swiftly and decisively" if russia invades the country. more than a dozen countries tell their citizens to leave ukraine, whilst over 100,000 russian troops remain at the border. 13 people are injured after a mezzanine floor collapses at a pub in east london. police have cleared the remaining protesters blocking a key bridge between canada and the united states, after a week of disruption. and people in switzerland have voted in favour of tightening the country's tobacco laws by banning virtually all advertising of tobacco products.

hello and welcome if you're watching in the uk or around the world. us presidentjoe biden has spoken to the ukrainian president volodymr zelensky by phone in the past few hours, as efforts to de—escalate the crisis over ukraine continue. the two agreed to pursue "diplomacy and deterrence" in response to russia's military build up on ukraine's borders. but mr biden made it clear that the united states would respond swiftly and decisively to any further russian aggression. earlier, white house national security adviserjake sullivan repeated his warning that a russian invasion could begin "any day." moscow denies it has plans to invade, but has positioned over 100,000 troops along its border with ukraine. in other developments on sunday, more than a dozen countries have now urged their citizens to leave the country. us members of an international monitoring mission in eastern ukraine have begun withdrawing.

dutch airline klm said it would stop flying to ukraine — and germany's lufthansa said it was considering suspending flights. and a consignment of stinger surface to air missiles have arrived in kyiv from lithuania — one of the nato member countries sending military support to ukraine. in the uk, the defence secretary has drawn parallels with the diplomatic efforts that took place before the second world war. jonathan blake has more. taking steps to bring russia back from the brink. the defence secretary, ben wallace, has been holding talks in moscow this week to avoid a possible russian invasion of ukraine. russia denies it is planning for that, but with more troops moving to its border with the country, some fear diplomacy may be futile. in an interview with the sunday times, ben wallace said the current situation had a whiff of munich in the air

from some in the west. a reference to attempts in the german city to appease hitler before world war ii. some saw it as criticism of allies taking a softer approach. a cabinet colleague disagreed. the comparison ben was drawing on, i know the comparison, it was around the attempts for a diplomatic outcome that it turned out adversaries at the time weren't really interested in... who is he directing this to? the point ben is making is that we are all working on this to find a diplomatic outcome but he is expressing a fear that russia might not be as genuine around the diplomatic engagement as they say we are. labour says it shares the government's concerns. it is immensely serious and nobody should be naive about what russia is up to and the scale of the troops amassing on the ukraine border. that's why i think there has to be this strong and swift and severe economic sanctions, financial sanctions, looking at the energy sector.

drawing a parallel with events in world war ii is bound to get attention. and regardless of the subtleties of the defence secretary's points, it's a reminder of the seriousness with which the uk and others are taking this situation, and a warning that whatever diplomatic efforts they pursue, president putin's mind may already be made up. the german chancellor, 0lav schultz, will travel to kyiv tomorrow and on to moscow for talks with president putin. he again warned of a strong reaction and immediate sanctions if russia invades. defiance in ukraine, where the country's president has called for calm. but while diplomatic efforts continue, the us warned again that russian military action could come any day. jonathan blake, bbc news. we can talk now to 0lga 0nuch, associate professor in politics at university of manchester,

and associate of the harvard ukrainian research institute. thank you for being with us. we have heard from president biden and president zelenskiy today, they have agreed to pursue diplomacy and deterrence. what you think that should look like? i deterrence. what you think that should look like?— deterrence. what you think that should look like? i think it is very welcome that _ should look like? i think it is very welcome that ukraine's _ should look like? i think it is very welcome that ukraine's allies - should look like? i think it is very welcome that ukraine's allies are i welcome that ukraine's allies are supporting it in this crisis, but certainly this is the time now for not only laying out the extremely serious sanctions that will be going ahead, but also potentially starting to act on some of these actions already. so, there is a question whether it should be nord stream two on the table or not. quite frankly, if ukrainian were to —— if russia were to invade ukrainian territory, they would have control, and therefore nord stream to it would no longer be such a good thing. we know that sanctions —

longer be such a good thing. we know that sanctions have _ longer be such a good thing. we know that sanctions have not _ longer be such a good thing. we know that sanctions have not worked - longer be such a good thing. we know that sanctions have not worked on - that sanctions have not worked on the fast. do you think that those we not outline so far would work? they would be enough of a deterrent? i think a very strong sanctions are on the table much stronger than what we saw in 2014. and i have said this several times in my analytical work. what is clear is that the european union, europe as a whole, nato, is united and very vocal and clear about the nature of the sanctions, and particularly also focusing on putin's inner circle, the kremlin inner circle. they will in fact be affected by these sangchan. sadly, so will the russian population, but this is the only way to get britain to listen, then it must do what it must. , ,~' , ., , to listen, then it must do what it must. , , .,, must. president zelenskiy has said toda that must. president zelenskiy has said today that all _ must. president zelenskiy has said today that all of _ must. president zelenskiy has said today that all of this _ must. president zelenskiy has said today that all of this information i today that all of this information and rhetoric coming from world leaders is causing panic in the country. when you speak to people there, are they panicking? ha.

there, are they panicking? no. peole there, are they panicking? no. peeple are _ there, are they panicking? no. people are not _ there, are they panicking? iiifk people are not panicking. i there, are they panicking? tin people are not panicking. i think the ukrainian people, for a very long time, have gone through incredible hardships, including over the last eight years of conflict with russian aggression at their doorstep. this is very personalfor them. i think sometimes when you see ukrainian experts on television, our uk viewers might not understand that this is my... these are my close friends, my family that i'm speaking about when i tell you this. whilst they are not packing, they are making plans. they are under extreme psychological stress. they make jokes that they are stocking up on medical supplies and i would go to basic foods, but they are very mindful that she had an invasion occurred, they will need to make plans, and they are very much worried about their elderly relatives that are immobile. and that will not have the option to

flee. and of course, many ukrainians just don't have the money to pick up on good like someone might do in western europe. in on good like someone might do in western europe.— western europe. in terms of it negotiated _ western europe. in terms of it negotiated outcome, - western europe. in terms of it negotiated outcome, russia . western europe. in terms of it - negotiated outcome, russia wants assurances that ukraine would be allowed to join nato. assurances that ukraine would be allowed tojoin nato. given assurances that ukraine would be allowed to join nato. given that it won't be in a position to meet the criteria within the next decade or two, could the west agree to that in the short term at least? i two, could the west agree to that in the short term at least?— the short term at least? i think nato has a _ the short term at least? i think nato has a very _ the short term at least? i think nato has a very clear _ the short term at least? i think nato has a very clear set - the short term at least? i think nato has a very clear set of - nato has a very clear set of vouchers, and so does the eu, and certainly sought to each of these member states individually, and the united kingdom specifically. i think in these societies, brief argued the right of ordinary citizens to be able to make decisions about the policy orientations of the country, specifically in the united kingdom, the brits were able to make such a decision not so long ago. you may agree with a decision that was made, but this was in fact a decision that ordinary britons were allowed to

make, and it should be ukrainians and ukrainian politicians that are allowed to make the decision for themselves. if they are serious, they will listen to the ukrainians. thank you very much forjoining us. police in canada say they've cleared the remaining protesters blocking a key bridge between canada and the united states, after a week of disruption. despite a court order to end the occupation, trucks and cars had blocked the ambassador bridge in ontario — which is north america's busiest land border crossing. jessica murphy reports. it didn't take that many vehicles to block the busiest land border crossing in canada. but after days of destruction, police have cleared the open bass of the bridge. the long stand—off between police and a handful of protesters lasted from saturday morning through the night. many finally chose to pack up and leave amid a police show offers. i heard one cop say we are taking

the trucks at first, so that is kind of the end at that point, they are taking the trucks out and getting us next. but not all of them. demonstrators had been blocking the bridge for almost a week, part of widespread anti—vaccine mandate protests across the country that began in ottawa and have since spread more widely. the bridge is a key trade link between the us and canada, and the blockade there had already begun to affect supply chains. car makers in detroit and canada have had to slow production because of delivery delays. the police action comes after a canadian court granted an injunction to clear the bridge, and the province of ontario declared a state of emergency. protesters are still here in the city centre. police say they have plans to resolve the issue. it has really paralysed parts of the national capital, but they are waiting for necessary reinforcements. the ottawa demonstration has inspired copycat protests in europe and elsewhere. prime ministerjustin trudeau was under increasing pressure

from the white house to solve the border closure. he had meetings over the weekend to discuss getting the situation under control, but it remains to be seen if the success in windsor can be duplicated. writers are not reporting to usa canada intent to reopen it as a key bridge today. voters in switzerland have backed legislation banning tobacco advertising anywhere it might be seen by young people. the move will bring the country into line with its european neighbours. 56% voted in favour in a referendum. several chinese streaming platforms have been accused of censoring lgbt plotlines from hit us sitcom friends. the show was re—released in china earlier this week, but chinese fans have complained of scenes being deleted, including those that reference a lesbian character, and another featuring a same—sex kiss. it's unclear why the scenes have been removed. none of the chinese streaming platforms have responded publicly to the accusations.

at the beijing winter olympics, heavy snow has disrupted the skiing schedules. the heavy snowfall came after a week of criticism of the dry conditions, which saw more than one million metric tons of fake snow being produced for the various events. 27 skiers were scheduled to take part in the slopestyle qualifiers, now postponed to monday. among them is home favourite eileen gu, who picked up the big air gold medal on tuesday. the north korean leader kimjong—un has made a rare public appearance in pyongyang. he was at a ceremony to mark the start of building 10,000 new homes. he promised to prioritise his country's economy and improve livelihoods. north korea has been hit by shortages because of tighter border controls with china during the pandemic. at least 13 people have been injured after a floor collapsed at a pub in east london. firefighters rescued seven

people who became trapped in the bar in hackney. tolu adeoye reports. the first thing wasn't what we saw but what we heard. suddenly there was this earthquake—like rumble. it was a casual saturday drink that took a frightening turn. hal was on the mezzanine level of the two more years bar in hackney wick when the floor suddenly gave way. 0bviously everyone began to scream and we all started to sink, and quite fast. i was lucky. but those people beneath me weren't so lucky and they were obviously quite scared, and those were the ones who were injured. firefighters rescued seven people who were trapped. 13 were injured in total — three seriously. the london ambulance service said the collapse was treated as a major incident. from the outside you can't really tell that anything has happened inside the building. we've not seen any activity while we've been here. i did speak to one local business

owner who said it was very lucky the time of day it happened, just before five, because if it had been later into the evening, into the night, this venue gets incredibly busy. tower hamlets council says a structural engineer has been on site to assess the integrity of the privately—owned building. it was due for demolition in two years. when we initially heard we were very concerned that there might be serious casualties. it must have been extraordinarily scary for people in there. we need to get our building investigators to find out what went wrong and make sure people are safe in this really lively part of east london. a statement on two more years' instagram account said it was thankful no one had sustained critical injuries, and its thoughts were with everyone affected. a sentiment echoed by london's mayor, sadiq khan, who also thanked the emergency services for their swift action. tolu adeoye, bbc london. the headlines on bbc news... in a phone call with ukraine's leader, president biden says he'll respond "swiftly and decisively" if russia invades the country.

13 people are injured after a mezzanine floor collapses at a pub in east london. and people in switzerland have voted in favour of tightening the country's tobacco laws by banning virtually all advertising of tobacco products. the prime minister of pakistan, imran khan, has warned that lynchings will be dealt with the "full severity of the law" after a man accused of blasphemy was beaten to death. the man was killed on saturday after accusations of desecrating the islamic holy book, the quran. it comes two months after another incident in which a sri lankan man accused of blasphemy was killed in pakistan, sparking protests. 0ur south asia editor anbarasan ethirajan has more on the latest incident. there were hundreds of people, according to local media reports, in the district of khanewal, and there was an announcement that one particular individual that desecrated the holy koran, he set fire to some pages, that was the accusation,

but his family said that he was having mental health issues, and despite — he was pleading innocent — this group was trying to target him, and then the local police had arrived at the scene and they were trying to arrest, because desecrating the koran or any insult to islam is a crime in pakistan, so they arrested him, but then because the crowd was really calling for his release and they wanted to take him away, and the local media report said the crowd simply snatched him by force from the police and then beat him to death with stones, and that is why the pakistani officials are now calling for an inquiry to find out whether there was any dereliction of duty by the local police officers. there have been other instances of people being killed over comments a public inquiry into the wrongful convictions of hundreds of post office branch managers begins tomorrow. more than 700 sub—postmasters were wrongly accused of theft, fraud and false accounting due to a flaw in the computer system they were using. ahead of the inquiry, the sub—postmaster thought to have

been given the longest prison sentence has been talking to our business correspondent, colletta smith. harjinder butoy ran a post office with his wife in nottinghamshire, but he's spent the last 14 years fighting to clear his name. charged with stealing £208,000, he was sentenced to three years and three months in prison for a crime he didn't commit. they found me guilty on ten counts out of the 11. that's when everything just... like you're hearing voices in the background while the charges are being read. it was horrible. were your family there in court? sorry... yeah. i can still hear it from this day, that cell door slamming behind me. with three children under ten, her husband sent to prison, her own news agency business

in ruins, balbinder has suffered just as much. it destroyed me. me, the kids. i had nobody. for years, the butoys have been told by the post office that there wasn't a problem with the accounting system. but there was. a big problem. and that's what this public inquiry is supposed to get to the bottom of. who in the post office knew? and why did they continue to blame and prosecute sub—postmasters? the company who sold the software to the post office was fujitsu. jez thompson used to work for them, training sub—postmasters on the new computer system as it was rolled out nationwide. when we did start to get towards, you know, the real meat end of the training, when we were teaching them how to do the closing of accounts at the end of the month, then we did find and discover a few faults. we could never reckon up everything to be exact. more often than not,

it was wrong, yeah. and those reports were always passed up through our managers to fujitsu services and i would imagine to the post office, saying there is still a fault on the live system. the post office have again said they are sorry and that their first priority is providing full, fair and final compensation, but that's not what harjinder wants. i want somebody on the other side to be charged and jailed like i was. they are the ones who signed the final paperwork off. they are the ones who knew if there were any faults on the system or not. you were fighting this for 14 years. does it still feel like you are fighting this? yeah. yeah, it does to me. harjinder butoy ending that report there by colletta smith. two nhs hospital trusts are working with police after a doctor from the west midlands was arrested on suspicion of sexual assault. the sunday times reports that staffordshire police are working with the nhs on a major incident review of the doctor's work

at hospitals across the midlands. the force says the 34—year—old man was arrested in december and released on bail. it's the biggest day of the year for american football fans — super bowl 56 — or lvi as it styles itself in roman numerals — will take place in los angeles in just a few hours' time. with a crowd of more than 70,000 in the stadium and hundreds of millions watching around the world, the adverts and the famous half—time show are almost as important as the game itself. sophie long reports from la. the first super bowl was played in los angeles in 1967. now football's coming home — to a brand—new stadium which just happens to be the most expensive sporting venue on the planet. a spectacular backdrop for the grand finale of this quintessential american sport. it's unbelievable. as soon as the kick—off happens, you just feel like you're almost in a movie. you know? no—one can believe... the tickets, by the way, are like $7,000. itjust feels like you're

in the most exclusive nightclub in the history of the world. right? and you'll see the most famous people in the world sitting in the upper deck. with ticket prices like that, of course, not everyone can go. we are super excited to be going to the game on sunday. and how do they feel that you are going to get to go and you're not taking them? it's so unfair! so there's some conflict at home but we have told them that the super bowl is not for them, but that we're definitely going to take them to another game next season. catherine? with an audience that could exceed 100 million, super bowl commercials are huge star—studded affairs, with 30—second slots selling for millions. watch the coffee. and then, of course, there is the half—time show. # in the city... you got snoop dogg, maryj, dr dre, eminem and kendrick lamar. it doesn't get any better than that. # guess who's back?

i've been keeping it all the way real. i'm not trying to be egotistical or anything like that, but who else could do this show here in la? mm—hm. no—one. that's a fact. who else could perform the half—time show other than these amazing artists that we have put together for this thing? but the spectacular is taking place in a city with rising crime and a homelessness crisis. many encampments have been cleared, leading to claims that some of the thousands living on the streets are being shoved into the shadows. this is a sense of community for them, and it may be hard for those of us that are housed to think through that, but there is a hierarchy, there are belongings. so when they're asked to move and they're forced out of that community, even if it is on the street, it creates additional trauma. whatever the costs, and the amount of money changing hands is monumental, la and its legendary rap royalty are ready. it's super bowl showtime. sophie long, bbc news, los angeles.

thousands of people have flocked to venice to celebrate carnival, for the first time in two years. the event usually draws tourists from around the world, but it was curtailed in 2020 because of covid and cancelled the following year. courtney bembridge has this report. after two years of covid—19 cancellations, carnival is back in venice. translation: this is the carnival of hope. l covid is ending and we hope to return to our normal lives with hope and enthusiasm. i believe that venice is based on art and therefore it has to start again with art and so we try to make art among people. many have made a great effort, but it is a scaled—back affair this year, a hybrid of virtual and in—person events and no big parades. translation: unfortunately,

because of the pandemic, - there are few people here, but we are here. we are the carnival. we do not need a big organisation. just come here and have fun — it's beautiful. i hope that in the next few days, there will be more masks around. i am glad that there are so many people, but i would like to see a carnival atmosphere. it is estimated 50,000 people visited the city on saturday to mark the start of the celebrations. translation: | came here i with my whole family in masks to celebrate the carnival with all the venetians. good people who have also had great difficulties. today, we must have fun and that is all. italy has just eased the coronavirus rules mandating mask—wearing outside, but these revellers were all too happy to have their masks on.

as he went out for a row one morning on the river thames in london, graphic designer simon hunt came across a rather unexpected find. lying on the pebbles and rocks of the riverbed at low tide, he discovered a human bone. when the police carbon—dated it, it turned out to be more than 5,000 years old. earlier my colleague martine croxall spoke to simon hunt about how he found the bone. well, ijust put the boat in the water, it is quite low tide and the water is very clear. i could see this object on the river, probably about a foot underneath the water, and my initial thought was, i recognised as a bone but kind of assumed it might be an animal bone, and i was rowing with friends of mine, and ijust thought it would be quite funny to pick out of the water and go, "oh, ifound a bone, ifound a bone!" when i picked up out of the water, i was kind of staring at this, which i recognised as a hipjoint, and then i thought, "that can't be..." i can't think of an animal

with a hip joint like that. and then i actually put the bone in the boat with me, carried on my morning row, and when we got back, the few of us that were there, we looked at it and say, "this is definitely a human bone, and i'd better do something about it. " so, what did you do? what's the protocol? well, i wasn't sure, so i phoned the police, thinking... my initial thinking was, "this is old, it looks really old," and then of course you're thinking, "well, what if it isn't?" this could be quite sinister or criminal. so, yeah, phoned the police, which was sort of amusing because they weren't quite sure what to do originally either. they weren't sure what forms to fill in or who to contact, but eventually they sent two officers around in the afternoon who were very excited when they saw it, recognised that it was a human bone. but by this time, the tide has come in. they asked me to show them exactly

where i had found it, and i couldn't because it was about 20 feet underwater, so they filled a few forms in and took it away, and the following day, a detective came to the house and she interviewed me, took a full statement and said they would send it away to be carbon—dated. and it's turned out to be a lot older than even you thought. how old did you think it was and how old is it? i wasn't too sure. when she phoned me up, she said, "ok, it's really old. have a guess — how old?" i was thinking, "i don't know, medieval?" where i row used to be a roman crossing point, so i thought, maybe even roman, but she said no, it's between — i'll read this — 3516 and 3365. and i was thinking, "3000?" and she said, "bc."

now, imagine opening your post and finding a cheque for two trillion pounds. well, dozens of people in northumberland and north yorkshire have been in exactly that startling position — but why? megan paterson has been finding out. 2,324,252,8001. gareth hughes was expecting compensation for four days without power, but not that much. hundreds of thousands of people in northern england lost connection during storm arwen. many still wait for compensation. a technical errorfrom a technical error from northern power grid has given some customers brief thoughts of a luxury lifestyle. i brief thoughts of a luxury lifestyle-— brief thoughts of a luxury lifes le. ., , ., lifestyle. i opened it, laugh, showed my _ lifestyle. i opened it, laugh, showed my wife _ lifestyle. i opened it, laugh, showed my wife and - lifestyle. i opened it, laugh, showed my wife and she - lifestyle. i opened it, laugh, - showed my wife and she laughed as well. at such a big value, it's something i can't even really imagine. it would be nice to be able to invest in some of my interest i am sure my local football team

to invest in some of my interest i am sure my localfootball team put appreciate it. am sure my local football team put appreciate it-_ appreciate it. gareth, who is an accountant. _ appreciate it. gareth, who is an accountant, shared _ appreciate it. gareth, who is an accountant, shared his- appreciate it. gareth, who is an accountant, shared his surprise| appreciate it. gareth, who is an - accountant, shared his surprise when full on twitter, asking the company, can you really afford this? in a statement. — can you really afford this? in a statement, they _ can you really afford this? in a statement, they told - can you really afford this? in a statement, they told us - can you really afford this? in —. statement, they told us gareth is among the 74 people who have been affected by this error. they have apologised for the missed it, they say they hope to set out they hope to set out to commit compensation cheques tomorrow, and to thank customers for being honest about the problem. customers for being honest about the roblem. ,., ., , customers for being honest about the roblem. .,, ., ,, problem. gareth was reassured he will claw- back _ problem. gareth was reassured he will claw-back some _ problem. gareth was reassured he l will claw-back some compensation, will claw—back some compensation, but it is not a cat in hebden's chance you will get the original generous amount. would you try to cast that check? there is a question for you. ben rich. hello. wind and rain feature heavily in the forecast for the next few days, following on from what has been an exceptionally soggy sunday. this is where we saw the rain. most parts of the uk had some some very wet weather, aside from northern scotland, where it stayed predominantly dry. and that rain is set to linger

across the south—east of england through tonight. more rain feeding back across scotland, northern ireland, then pushing south—eastwards into north—west and wales. it'll be quite windy at around northern coasts particularly. temperatures overnight generally holding above the freezing, given the strength of the wind. tomorrow, quite a messy weather story. this band of cloud will bring patchy rain southwards across england and wales. scotland and northern ireland i think ending up with a day of sunny spells and showers, some of the showers wintry over high ground in scotland. it will stay quite blustery. temperatures north to south six to 10 degrees, but as we head into the middle part of the week, well, it will turn very mild for a time, and then potentially stormy from mid—week onwards. it is worth staying in touch with the forecast. hello, this is bbc news. the headlines: in a phone call with ukraine's leader, president biden says he'll respond "swiftly and decisively" if russia invades the country.

more than a dozen countries tell their citizens to leave ukraine —