this is bbc news — i'm simon pusey with the latest headlines for viewers in the uk and around the world. president biden warns the russian president that he'll respond with �*severe economic sanctions' if ukraine is invaded. as russian military drills continue — the kremlin has accused the west of �*hysteria'. meanwhile the ukrainian president warns against creating panic. the best friend for enemies — that is panic in our country. and all this information, that helps only for panic. it doesn't help us. police in canada move in on truckers who cut off a major crossing to the us — but the protesters are reportedly building—up again. copy—cat chaos in paris as police fire tear gas at protesters angry at covid restrictions in france and thousands flock to venice for the return of carnival celebrations — after

a two—year enforced break. hello and welcome to the programme. president biden has warned the russian leader, vladimir putin, of "swift and severe" consequences if he invades ukraine. the two men spoke over the phone amid western fears that an invasion could be imminent. the white house said it was ready to engage with diplomacy, but was equally prepared for "other scenarios". the kremlin attacked the "hysteria" of the west and complained that its demands weren't being addressed. our north america editor, sarah smith, is in wsahington. there is a pessimistic mood in washington tonight, as a senior administration

official says there has been no fundamental change in the dynamic after that call between presidents biden and putin. the us says it is unclear whether russia is interested in pursuing its goals through a diplomatic solution rather than through the use of force. so president biden was blunt about his intention to impose punishing economic sanctions — "swift and severe costs", he called them — if russia does further invade ukraine. and after the call, the kremlin�*s top foreign policy adviser said, "hysteria has reached its peak." now, as america believe that president putin is in a position to order an invasion any day now, they're warning about the possibility of a manufactured attack on russian forces that could be blamed on ukrainians and then used as a trigger for military action. new details about what the us calls a false flag operation were discussed in an emergency meeting in the white house situation room two nights ago. they say it could involve

russian operatives with explosives carrying out attacks on russian forces that would then be used as a pretext for an invasion of ukraine. so tonight, the us says it has not ruled out the possibility of further talks, but they are now also planning for a worst—case scenario. a dozen nations including the uk have told their citizens to leave ukraine. our correspondent paul adams has been speaking to some of those affected. do you want to go to spain? how best to leave? stuart mackenzie is looking for flights with his sons, robert and stuart. after 28 years of life here, he can't quite believe it. this is just crazy, just crazy. it's a peaceful country and, in this day and age, and you're talking about tanks and bombs coming in, it's crazy. i don't understand, and we are in europe. there is a lot to think about — what to do with start�*s elderly mother—in—law, his brother's family also here, and his 20 local employees.

if there are flights available for the family, then that is a good option for us, that gets us out within hours. if that is not the case, then plan b is taking the car and trying to get to the border — and praying that we are not too late. at the british embassy, signs of urgency and departure, no one here willing to talk. the foreign office says it is not in a position to help british citizens with their plans. nearby, a march of defiance in the face of a gathering storm — a rare display of public feeling at a time when russia is menacing their borders, staff are leaving embassies and foreigners are being told to get out. i have to analyse all the information which we have. touring the south, ukraine's president seemed frustrated by apocalyptic warnings coming from washington. and the truth is that we have different information and now the best friend for enemies, the panic in our country. and all this information helps only for panic, it doesn't help us. russia's war games in belarus are now under way. this, american officials warn, is how an assault on ukraine could begin.

moscow still says it has no plans to invade. joe biden and vladimir putin spent an hour on the phone tonight. mr biden told the russian leader that if he launches a further invasion of ukraine, the west and its allies will impose swift and decisive sanctions. pauladams, bbc news, kyiv. don't forget you'll find much more detail about the situation in ukraine on our website — it's updated 2a hours a day — just head to bbc.com/news —

or download the bbc news app. let's get some of the day's other news. the court of arbitration for sport is holding a hearing later, in the case of the 15—year—old russian skating sensation, kamila valeeva, who failed a drug test before the winter olympics. kamila valieva was part of the olympic gold—medal winning russian team, but she is now waiting to hear whether that result will stand. peru's new environment minister says the spanish oil company, repsol, is not doing enough to clean up the damage caused by an oil leak from one of its refineries a month ago. after visiting some of the affected coastal areas, near the capital, lima, modesto montoya said wildlife was still suffering the impact of the spill. the us government has expressed concern over the continued violence againstjournalists in mexico. heber lopez was shot on thursday — the fifth reporter to be murdered this year. the us embassy in mexico called the shooting a "loathsome" act. mr lopez ran an independent news website specialising in reporting corruption in local government. mauritius is preparing to raise its nationalflag

on the disputed chagos archipelago in the indian ocean. the islands were claimed by britain more than 50 years ago to allow the us to build an airbase there and residents were forcibly removed from their homes. crowds of protesters opposed to covid restrictions in canada are reported to be building up again near the ambassador bridge, linking the province of ontario with the us state of michigan. police managed to clear the area of big trucks but a small number of pick up vehicles are still there. the standoff has continued even after a court on friday ordered an end to the demonstration. jessica murphy reports from ottawa. horn honks. it didn't take that many vehicles to block the busiest land border crossing in canada, but it's taking hours for police to clear the ambassador bridge blockade. for the moment, the officers are trying negotiation tactics as they try to get protesters to leave peacefully after six days of demonstrations. their message that they tried to send from the very beginning has clearly lost its way, and i don't think the people

here — notjust the police, but i don't think the people in our community or on the other side of the border are interested in hearing it any more. who are you protecting? with a vital trade route interrupted, the province of ontario declared a state of emergency on friday that brought in penalties like heavy fines and possible jail time for those participating in the blockades. that came into force hours later, alongside a court—granted injunction to remove the protesters. it took just day for the blockade on the ambassador bridge to put a squeeze on supply chains and cause anger on both sides of the border. it's an economic link between the us and canada. hundreds of millions of dollars in trade cross the border there each day. copycat protests in europe and around the world have sprung up in recent weeks, with supporters calling for an end to covid—i9 restrictions. this is a grassroots people with their children and their grandparents and parents coming together saying, "hey, you know, like, my rights and my freedoms are being infringed and denied here." drop the mandates, we go home. 15 minutes, we're gone. facing growing pressure

from the white house at home, prime ministerjustin trudeau made this vow on friday. so, make no mistake, the border cannot and| will not remain closed. but despite efforts to get dug—in protesters to leave, demonstrations continue nationwide. protests in ottawa are entering their third week now, with demonstrators and their trucks continuing to block much of the city centre. government officials are meeting to discuss these ongoing protests, but for the moment, there is no clear end in sight. jessica murphy, bbc news, ottawa. meanwhile police in paris have fired tear gas to disperse groups of activists attempting to blockade the french capital. hundreds of vehicles were intercepted on the way to the city and more than 300 fines given out. hugh schofield reports from paris. in the early afternoon, 20 or 30 cars managed to get past the police checkpoints and block the champs—elysees at the top end by the arc de triomphe. chanting the occupants flying tricolour flags and chanting anti president macron slogans.

there was a tense standoff with police firing tear gas to disperse groups of protesters, scenes similar to if less violent than the yellow vest protests of three years ago. protesters said they were inspired by the canadian blockades and wanted an end to government covid rules. translation: we've come - from reims, an hour and a half away from paris, to be a part of this freedom convoy. we are here today notjust because we are against the vaccine pass but also because of all the taxes the government is imposing on us. police tow trucks were brought in to remove the protesters' vehicles and traffic was able to resume. but some hours later, as evening set in, there were still small—scale skirmishes down the avenue and more tear gas being fired. the scenes on the champs—elysees may have been reminiscent of the yellow vest movement but, overall, the impact of the french so—called "freedom convoys" has been limited with no serious disturbance

to life in the capital. many of the protesters who'd driven in convoys from points all over france in recent days have said they now intend to continue on to brussels. hugh schofield, bbc news, paris. a riot broke out in sao paulo on saturday night — after the brazilian team, palmeiras, lost the club world cup final to britain's chelsea. police moved in to disperse the crowds shortly after the match finished. sao paulo's military police said one man was shot and killed in the violence. the match was being played in abu dhabi but thousands of fans had gathered at palmeiras' stadium in sao paulo to watch on the big screens. it's the biggest day of the year for american football fans — super bowl 56 will take place in los angeles later on sunday. with a crowd of more than 70—thousand and more than 100 million people expected to watch around the world — the adverts and the famous half—time show are as important as the game itself. sophie long reports from la. the first super bowl was played in los angeles in 1967. now, football

is 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 is unbelievable. as soon as the kick—off happens you just feel like you almost in the movie, do you know what i mean? everything, no one can believe they're there. the tickets are, like, $7,000. it feels like you're in the most exclusive nightclub in the history of the world. you'll see the most famous people in the world sitting on the upper deck. with ticket prices like that, of course, not everyone can go. we are super excitedj to go to the game on sunday. how does it feel that you are getting to go but not taking them? we're definitely going . to take them to another game next season. with an audience that could exceed 100 million, super bowl commercials

are huge, star—studded affairs. 30—second slots selling for millions. and then, of course, the half—time show. you have got snoop dogg, maryj, eminem, kendrick lamar, don't get any better than that. i have been keeping it real. i'm not trying to be egotistical or anything like that but who else could do the show here in la? 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 the city with rising crime and homelessness crisis. many encampments have been cleared, leading to claims that some of the thousands living on the streets have been shoved into the shadows.

this is a sense of community for them and may be hard for those of us housed to think through that but there is a hierarchy. when they are asked to move and 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 the legendary map royalty are on the way. it is super bowl time. this is bbc news — our main headlines. us presidentjoe biden warns russian leader vladamir putin that he'll respond with �*severe economic sanctions' if ukraine is invaded. as russian military drills continue with belarus — the kremlin has accused the west of �*hysteria'. voters in switzerland will go to the polls on sunday to decide whether to tighten tobacco laws — including a ban

on advertisements anywhere that young people might see them. campaigners say switzerland has been slow to adopt measures due to lobbying by tobacco companies. our correspondent, imogen foulkes reports from bern. switzerland, a byword for good health and clean air but 2 million people here, almost one quarter of the population, smoke. most started when they were teenagers. every year 9500 people die from the tobacco—related illness foot of a cost billions on health and economic costs. that is why it is so important people to limit advertising, discounts and sponsoring. switzerland lags far behind the rest of europe over tobacco control. in a survey of 80 countries it ranked second to last.

campaigners blame lobbying by the industry. the words biggest tobacco companies have headquarters in switzerland. they contribute $6 billion a year and 11,000 jobs to the swiss economy. there is opposing the ban say it could the door to restrictions on advertising other things. sugar, alcohol, even switzerland's beloved sausages. we are in an era where all advertising is likely to be banned. obviously, for the swiss business community, this is a serious problem. of really fundamental problem. the swiss government sides with business. it is calling for a note to the band but opinion polls suggest voters think differently. over 60% want an end to tobacco advertising. as ever, in switzerland, where all big policy goes to a vote, the swiss are deciding on other things, too. a proposed ban on animal testing and new subsidies for the media. but the key outcome today is likely to be switzerland finally calling

time on big tobacco. the venezuelan president, nicolas maduro, has urged his supporters to help him defeat corruption and bureaucracy, in the biggest pro—government demonstration in months. addressing large crowds in caracas, mr maduro criticised what he described as "coward leftists," in a thinly veiled reference to left—wing leaders disparaging of his government. opposition supporters, joined by leaderjuan guaido, also gathered in caracas in a parallel rally. the impact of two world wars on the landscape is well—documented and, in many cases, is marked by monuments and remembrance plaques. but one archaeologist is highlighting the lesser—known affect of the cold war on northern ireland's infrastructure. on northern ireland's people always say, cold war, that happen somewhere else,

didn't it? these are built for nuclear war, these are built for armageddon and amongst hedges trees of southdown. this is all across northern ireland. post that would have monitored nuclear explosions over northern ireland. a whole network of these. over 50 of these were built. as a nuclear weapon when told they would have assessed the drift. and these things were a reality right now. seems abstract but now. back then, it was very real. the event of bad loan remainder shall be divided with low contact at all between russians and their world were allies. across wool and wire, east germans glare at the troops of the west and nobody seems to be anywhere near to a solution to the berlin problem. the cold war ultimately is a stand—off between east and west, capitalism and communism. both nuclear armed blocks. the cold war both nuclear armed blocks. tue: cold war between both nuclear armed blocks. tte: cold war between east both nuclear armed blocks. t'te: cold war between east and both nuclear armed blocks. tte: cold war between east and west, in manhattan. but cold war between east and west, in manhattan-—

in manhattan. but instead of actually facing _ in manhattan. but instead of actually facing off _ in manhattan. but instead of actually facing off against. actually facing off against each other they forked these proxy wars. they still maintain a readinessjust in proxy wars. they still maintain a readiness just in case the cold war went out. you've got to remember that the cold war was a global battle field so that the cold war has left its imprint here in northern ireland. you have to know what to look for. ireland. you have to know what to look for-— to look for. the scan of the air u- to look for. the scan of the air up to — to look for. the scan of the air up to 180 _ to look for. the scan of the air up to 180 miles - to look for. the scan of the air up to 180 miles away. i to look for. the scan of the - air up to 180 miles away. radar becomes the key to safety. tt becomes the key to safety. it has been transformed. it is this quite lovely racetrack in county down, easter northern ireland but it fits into a cold war story because it was a radar station throughout the cold war. it has full back. it has the radar networks, incoming russian bombers. one of the best examples of it is the control and reporting post. these wills are have a metre stick. this is reinforced concrete. this can take a lot of abuse would have that allow people to keep working to keep

the planes in the air while terrible things, essentially, happening outside. and this goes all way through and this is actually discovering the door. that is a reinforced steel door. we made sure that the inside, they can continue to operate under war conditions. this is where the radar works but how they communicate with the rest of the world under tight conditions as the transmitter bunker. this would have maintained communications with the raf sector of operations. i love the fact that it sits in amongst the rural idyll of southdown. history's imprint on the land. drjames o'neill there — on northern ireland's cold war heritage. 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 as infections soared in italy, and the following year, it was cancelled amid another wave of infections. organisers and attendees hope this year's event will mark a slow return to normality. courtney bembridge

has this report. after two years of covid cancellations. carnival is back in venice. this is the carnival of hope. 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 had 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. unfortunately, because of the pandemic, there are few people here, but we are here. we are the carnival. we don't need a organisation, just come here and have fun. it is beautiful. i hope that, the next. few days, there will be more masks around.

i'm glad that there . are so many people i would like to see a greater carnival atmosphere. - it is estimated 50,000 people visited the city on saturday to mark the start of the celebrations. i came here with my whole family and masks to celebrate the carnival with all the venetians. good people who have also had great difficulties. today we must have fun, that's all. italy has just eased the coronavirus rules mandating mask wearing outside but these revellers were all too happy to have their masks on. now some pictures out of north korea... the country's leader kimjong—un attended a ceremony marking the start of construction of 10,000 new apartments in pyongyang. state—run television showed several blasts marking the start of the construction. it's part of a wider plan for 50,000 new apartments in the capital — after north korea's parliament pledged to develop the economy and improve people's livelihoods. you may have heard of the saying that a dog

is a man's best friend. well, one frenchman has been testing that theory to its limit. afterjust a month and a half of training, he managed to teach his pet dog how to fly. and footage of the two of them taking to the skies together, has, as you might expect, gone viral. tom brar—da has the story. here's something you definitely don't see every day. this is ouka the dog and his owner, shams. a video shams posted of the two of them paragliding among the peaks of the french alps has taken off on social media. the first video we did, it did maybe 150 million views. i think most of the people were... like, it's something

completely amazing, and they never saw that before. what gave you the idea to take him paragliding? well, the first thing i noticed is ouka was not afraid of ice. for example, when we would go hiking, he was standing super on the edge of the cliff, and after that, i started to play with my own glider to teach him that it's ok, it's not scary and he was super fine with it. after that, we checked if he was ok to wear a special harness for flying. so, i teach him to come between my legs on command, so i said "decollage" — it's "take off" in french. and then we ran together andjust run, run, run and we take off. can you describe for me what it was like when you first met each other, when you first got ouka? she before i got ouka, i was not in my best period of life. like, i was not working so much because of the covid. i was having, like, some personal issues in my life.

and, yeah, iwas, like, fighting a big, big depression, actually. courseouka was not very lucky or so in his life. he has been abandoned two times. the second owner of ouka, i think they were not taking him outside so much. when they gave him back, he was full of parasites, he was really in bad shape. i think i gave ouka the life he was needing to have. he pushes me, yeah, to wake up in the morning and to find motivation to do stuff. so, yeah, ithink i need to tell him, like, a big thank you. their adventures perhaps prove that you can, in fact, teach an old dog new tricks. tom brada, bbc news. penelope cruz, javier bardem and cate blanchett brought some hollywood glamour to the red carpet at the goya awards in valencia. the awards are considered by many in spain to be the equivalent of the oscars. javier bardem won best actor — his seventh — while cate blanchett received the first—ever international goya award. you can reach me on twitter —

i'm @ sipusey. hello. there is more wind and rain in the forecast, not only for the rest of the weekend, but indeed throughout the coming week. sunday looks like this. heavy rain affecting many parts of the uk, windy weather across the south, lighter winds further north. but on the satellite picture, you can see this shield of cloud racing in from the atlantic. this will bring wet weather to start sunday across western england, wales. the rain quickly getting into northern ireland, northern england and up into southern scotland as well. for east anglia and the south east, the day will start off on a dry note, but rain will arrive here through the afternoon. northern scotland likely to stay mostly dry with some spells of sunshine and just the odd shower, and slightly drier conditions could develop in northern ireland through the afternoon. the winds across northern areas are relatively light. southern areas, brisk winds. those are the average

wind speeds. the gusts could touch 50 mph for english channel coasts. but it will be relatively mild, 7—11 degrees. a very, very soggy sunday evening across east wales, central and eastern parts of england. that rain taking a long time to clear away. some drier conditions will develop out west, but with some showers. a fairly brisk northerly breeze, but i think given the strength of the breeze, it's not going to be a particularly cold night. but low pressure will still be close by into monday morning. showers circulating around that low, some brisk winds. just a little bump in the isobars, a ridge of high pressure just trying to drive things out as it topples in from the west. so, we will see some early rain across southern parts. that will clear to a mix of sunshine and showers. some of those showers wintry in scotland, especially over high ground, but potentially even to lower levels. feeling relatively chilly, i think, on monday given the strength of the breeze. top temperatures between 6—10 degrees. into tuesday, we see another band of rain pushing in from the west, some snow for a time across high ground in scotland and some wintry showers following on behind with some sunny spells in between. top temperatures on tuesday between 6—11 degrees. it is going to be another windy day, but those winds could well step up a gear as we move into wednesday thanks to this

deepening area of low pressure. lots and lots of white lines on the chart here, lots of isobars squeezing together. while the details of this forecast will change, it does look like we could see gales or severe gales in places on wednesday with some heavy bursts of rain. but it will be really mild for a time, turning chillier towards the end of the week.

this is bbc news. the headlines... president biden has warned the russian president, vladamir putin, of the costs of any invasion, saying that he�*ll respond with �*severe economic sanctions�* if ukraine is invaded. moscow has amassed an estimated 100—thousand troops along ukraine�*s border but denies any intent to invade. many countries including australia, italy, israel, the netherlands and japan have told their citizens to leave ukraine. non—essential staff have been ordered to leave the us embassy in kyiv. meanwhile the ukrainian president said invasion warnings could stoke panic, which he called "the best friend of our enemies". the canadian prime minister, justin trudeau says that all options remain on the table to tackle protests at several locations against covid restrictions. crowds of demonstrators have remained at a bridge linking canada and the us. mr trudeau said that border crossings cannot and will not remain closed. now on bbc news, it�*s

time for the media show.