breaking lockdown rules. supermarkets across the uk are limiting how much cooking oil customers are able to buy — as supplies are hit by the war in ukraine. and tyson fury will take on dillian whyte later — in what's expected to be one of the biggest all—british heavyweight fights in boxing history. ukraine is urging the united nations and other international organisations to do more to rescue civilians and provide critical aid to areas under attack from russia. in particular officials say more help is needed to get to people in the besieged southern city of mariupol. there are hopes for another attempt at a humanitarian corridor today but no confirmation yet whether that is under way. russian forces have been trying to take full control of mariupol for several weeks. un secretary—general antonio guterres is due to meet the russian president vladimir putin in moscow in the coming days, before travelling on to kyiv. earlier, president zelensky warned that russia could attack other countries — saying the invasion of ukraine is only the beginning. simonjones reports. underattack, ukraine's second city, kharkiv. russia's assault is intensifying. the dangers are clear. despite the destruction, some residents are determined to stay. we are going to fight. to fight as long as it is needed for the victory. fresh attempts are being made to get civilians out of mariupol. 100,000 people are still thought to be trapped there. ukraine's deputy prime minister says the evacuation will only succeed with the help of the un. translation: un right now just observes what is happening in mariupol, and if the world unites and demands that this evacuation happens, only then it can happen. to try to halt the fighting, the head of the un will travel to moscow on tuesday for talks with president putin before going to kyiv to meet president zelensky on thursday. there is a mood of urgency. these satellite images are said to show a second mass grave on the outskirts of mariupol. this family, who've made it to safety, say they walked for five days to escape the conflict. translation: we will never forget what happened. - we cannot. but we need to keep our spirits up and raise our children. russia says it has captured an arms depot in the kharkiv region, containing thousands of tonnes of ammunition. the uk says it's considering expanding military support to kyiv by giving poland tanks to replace those warsaw is sending to ukraine. we're also looking more at what we can do to backfill in countries such as poland who may want to send heavier weaponry to defend — help defend the ukrainians. and the ukrainian president has welcomed another uk commitment. translation: i am grateful to our british friends - for the important symbolic decision announced today to return the embassy to kyiv. the united kingdom became the 215t country to return a diplomatic mission to our capital, and this shows that we're not the only ones who believe in the victory of life over death. russia has, for the first time, admitted that at least one crew member died when its black sea flagship moskva sank last week. 27 others are unaccounted for. ukraine says it struck the vessel with missiles. moscow has blamed the sinking on a fire. there's claim and counterclaim. but president zelensky says the attack on ukraine is only the beginning, and that russia intends to invade other countries. simon jones, bbc news. we can cross live to the capital kyiv and our correspondent there, joe inwood. these humanitarian corridors have been spoken about for some weeks now? trying to set up these humanitarian corridors has been one of the perennial themes at the siege of city of mariupol. there have been several claims about one in the past few days. a couple of hours ago it was supposed to be starting according to city council. honestly, we don't know when information is quite slick and of mariupol and the damage to the city's communications infrastructure and we will find out probably later in the day information starts to trickle out as to whether the buses set off the number of buses, number of people, type of people on board and if they do work and they do start to get people out it wouldn't be until tomorrow that they could get through the many russian checkpoints that line the road heading west and head north to the town or city of zaporizhzhia which is inside ukrainian controls territory. bass ukrainian controls territory. boss about president _ ukrainian controls territory. boss about president zelensky saying this is just the beginning about president zelensky saying this isjust the beginning of about president zelensky saying this is just the beginning of the ship or �*s ambitions and military aims, that butter could bear the brunt of military aggression? what more do we know about that? this military aggression? what more do we know about that?— know about that? this came from a seech know about that? this came from a speech given _ know about that? this came from a speech given by — know about that? this came from a speech given by a _ know about that? this came from a speech given by a senior— know about that? this came from a speech given by a senior but - know about that? this came from a speech given by a senior but not. know about that? this came from a | speech given by a senior but not top russian major general saying their aim was now to take notjust the donbas, east of the country, but the entire south coast and would be the as of post and the black sea coast including the historic count of 0desa. —— azov coast. 0n moldova's eastern border with ukraine is never flu the one which has been russian speaking and —— in area called transnistria which has been russian speaking in semi—autonomous, russian troops there, and are fears that russian troops bordering transnistria is their source of running anyway and then therefore mine start going to moldovan territory and this feeds into a narrative of fear that russia has designed on the entire former soviet bloc. , ., ., , ., , , designed on the entire former soviet bloc. �* ., . , ., , , . bloc. joe, there had been hopes that with the orthodox _ bloc. joe, there had been hopes that with the orthodox easter— bloc. joe, there had been hopes that with the orthodox easter happening | with the orthodox easter happening this weekend that there might be some sort of potential for an easter truce or ceasefire of some sort. is that looking likely or not? that was re . uested that looking likely or not? that was requested on _ that looking likely or not? that was requested on thursday. _ that looking likely or not? that was requested on thursday. the - that looking likely or not? that was i requested on thursday. the european union had asked for it as well, united nations and of course president zelensky but it was rejected. ukrainian state was rejected. ukrainian state was rejected by the russians. it would have made a humanitarian corridor easier but in the end it is not going to be the easter that they had hoped for. people here in the q going to be the easter that they had hoped for. people here in the 0 but it is relatively more calm and stable here. people are going about what they would normally be doing on easter all over the city is very quiet and winless in people going to big shops to get their easter cakes there, painting decorative eggs which is one of the traditions of orthodoxies to here in ukraine but, no, there is no easter truth and thatis no, there is no easter truth and that is one of the themes that president zelensky pulled out in his nightly message to people yesterday. the theme of easter is a time when it seems the darkness is going to win but ultimately like triumphs. the victory, in his words, of good over evil and he brought it out painting the ukrainians and russians as the light in the darkness. campaigning has ended in france ahead of what's expected to be a close run— off between president emmanuel macron, and his far—right rival, marine le pen, on sunday. 0pinion polls suggest macron still has the upper hand, but his challenger could perform better than she did when the pair went head to head in 2017. we can cross live to la courneuve, just outside paris, thanks very much. both those things he said yesterday, the pending better than when but my consul having a clear lead at both the case no huge surprise if the election did not turn out that way but opinion polls are opinion polls and as emmanuel macron said as his last word in this campaign they don't win elections, voting does, and there is an anxiety about central rates. i just want to say about the village where we are, behind me as the old steelworks from way back in the turn of the 1900s. this was quite a industrial heartlands. changed over and now has about 30—35% immigrant population very much a working—class neck of the woods and it voted very strongly in favour of the man who didn't make it to the final round, jean—luc melenchon, 63% here for john mcmullen chung and he got 23% overall so where does leave him and his fran ——jean—luc overall so where does leave him and his fran —— jean—luc melenchon and his fran —— jean—luc melenchon and his party? we could talk to an activist from the party now, francis hazelton. thank you very much for joining us. i should point out your english is better than mine see a parents are both british, you have lived if all your life and never finish citizen is one. why did you vote forjohn mcmullen shone and why do work for him? i vote forjohn mcmullen shone and why do work for him?— do work for him? i wasn't the only one who voted _ do work for him? i wasn't the only one who voted for _ do work for him? i wasn't the only one who voted for him _ do work for him? i wasn't the only one who voted for him and - do work for him? i wasn't the only one who voted for him and we - do work for him? i wasn't the only one who voted for him and we gotj one who voted for him and we got excellent — one who voted for him and we got excellent results —— jean—luc melenchon. 63%. the festival we have a very— melenchon. 63%. the festival we have a very vibrant, young, disciplined parliamentary group which been very active _ parliamentary group which been very active over— parliamentary group which been very active over the past ten years defending policy measures and we also have — defending policy measures and we also have a programme which was hailed _ also have a programme which was hailed by— also have a programme which was hailed by experts and even political opponents and also we have one of the best_ opponents and also we have one of the best economic programmes. for instance. _ the best economic programmes. for instance, jean—luc melenchon is pushing — instance, jean—luc melenchon is pushing a — instance, jean—luc melenchon is pushing a minimum wage to 1200 euros which is _ pushing a minimum wage to 1200 euros which is a _ pushing a minimum wage to 1200 euros which is a necessity here and those areas _ which is a necessity here and those areas. �* ., ., ., ., ., areas. i'm not going to go into those details _ areas. i'm not going to go into those details but _ areas. i'm not going to go into those details but it _ areas. i'm not going to go into those details but it is - areas. i'm not going to go into. those details but it is promising areas. i'm not going to go into i those details but it is promising a lot and it would cost a huge amount to implement it all. he hasn't gone through to the second round but what he has done is said whatever you do don't vote for marine le pen but i'm at her new who to vote for. what are you going to do? his at her new who to vote for. what are you going to do?— you going to do? his message is clear that no _ you going to do? his message is clear that no one _ you going to do? his message is clear that no one should - you going to do? his message is clear that no one should vote - you going to do? his message is clear that no one should vote for marine _ clear that no one should vote for marine le — clear that no one should vote for marine le pen. personallyl clear that no one should vote for marine le pen. personally i think emmanuel— marine le pen. personally i think emmanuel macron represents the least worst solution. two missions for that _ worst solution. two missions for that. personal, of marine le pen is likely— that. personal, of marine le pen is likely during the next five years we then left _ likely during the next five years we then left bloc will have to make alliances — then left bloc will have to make alliances with emmanuel macron in order— alliances with emmanuel macron in order to _ alliances with emmanuel macron in order to fight marine le pen as a present— order to fight marine le pen as a present and that obviously will not help as _ present and that obviously will not help as a _ present and that obviously will not help as a left—wing party. second reason, _ help as a left—wing party. second reason, if— help as a left—wing party. second reason, if emmanuel macron is a lecture _ reason, if emmanuel macron is a lecture this — reason, if emmanuel macron is a lecture this time, we will be able to oppose — lecture this time, we will be able to oppose it with a strong parliamentary group during the next five years _ parliamentary group during the next five years -- — parliamentary group during the next five years —— if he is elected. we will he _ five years —— if he is elected. we will be able _ five years —— if he is elected. we will be able to show that emmanuel macron— will be able to show that emmanuel macron is— will be able to show that emmanuel macron is an anti—socialist candidate. macron is an anti-socialist candidate-— macron is an anti-socialist candidate. , ., , candidate. sorry to interrupt you, ou're a candidate. sorry to interrupt you, you're a party _ candidate. sorry to interrupt you, you're a party with _ candidate. sorry to interrupt you, you're a party with 17 _ candidate. sorry to interrupt you, you're a party with 17 seats - candidate. sorry to interrupt you, you're a party with 17 seats in - candidate. sorry to interrupt you, you're a party with 17 seats in the| you're a party with 17 seats in the national assembly. you're a party with 17 seats in the nationalassembly. do you're a party with 17 seats in the national assembly. do not really making much of a dent in the moment. how do you turn that round? taste making much of a dent in the moment. how do you turn that round?— how do you turn that round? we got 2296 how do you turn that round? we got 22% this how do you turn that round? we got 2296 this time, — how do you turn that round? we got 2296 this time, which _ how do you turn that round? we got 2296 this time, which is _ how do you turn that round? we got 2296 this time, which is better - how do you turn that round? we got 2296 this time, which is better than l 22% this time, which is better than last time, — 22% this time, which is better than last time, and in the third round of elections _ last time, and in the third round of elections which is elections injune and the _ elections which is elections injune and the members of parliament we are making _ and the members of parliament we are making alliances and right now as we speak— making alliances and right now as we speak we _ making alliances and right now as we speak we have other left—wing parties — speak we have other left—wing parties coming communist party and green _ parties coming communist party and green party and it is possible in a few months' time that we will get more _ few months' time that we will get more than — few months' time that we will get more than 280 members of parliament if people _ more than 280 members of parliament if people are mobilised in the third round _ if people are mobilised in the third round that — if people are mobilised in the third round. that is our task now, get people _ round. that is our task now, get people out— round. that is our task now, get people out there ready to vote. that is a bi if people out there ready to vote. that is a big if in — people out there ready to vote. that is a big if in terms _ people out there ready to vote. twat is a big if in terms of numbers and we will wait to see how that pans out. another bigger if it is that your leader said make the payments to police. that is not going to happen. to police. that is not going to ha en. ., ., ., to police. that is not going to hauen. . ., ., , . , to police. that is not going to ha en, ., ., ., , ., , , to police. that is not going to hauen. ., ., ., , ., , , ., happen. part of our strategy is to ut happen. part of our strategy is to put pressure _ happen. part of our strategy is to put pressure on _ happen. part of our strategy is to put pressure on emmanuel - happen. part of our strategy is to i put pressure on emmanuel macron happen. part of our strategy is to - put pressure on emmanuel macron and also part— put pressure on emmanuel macron and also part of— put pressure on emmanuel macron and also part of a _ put pressure on emmanuel macron and also part of a strategy to remind people _ also part of a strategy to remind people that this round injune and he will— people that this round injune and he will need to vote. and people that this round in june and he will need to vote.— he will need to vote. and it is auoin to he will need to vote. and it is going to be — he will need to vote. and it is going to be tough _ he will need to vote. and it is going to be tough getting - he will need to vote. and it is . going to be tough getting people he will need to vote. and it is - going to be tough getting people out again? going to be tough getting people out auain? , going to be tough getting people out auain? _, ., again? eight is always tough getting --eole out again? eight is always tough getting people out and _ again? eight is always tough getting people out and in _ again? eight is always tough getting people out and in these _ again? eight is always tough getting people out and in these areas - again? eight is always tough getting people out and in these areas there | people out and in these areas there had been _ people out and in these areas there had been huge mobilisation meal are terrified _ had been huge mobilisation meal are terrified of— had been huge mobilisation meal are terrified of marine le pen because she defends a xenophobic programme but people also of emmanuel macron's social measures. it but people also of emmanuel macron's social measures.— social measures. it must take your bet that if only _ social measures. it must take your bet that if only you _ social measures. it must take your bet that if only you had _ social measures. it must take your bet that if only you had found - social measures. it must take your bet that if only you had found a - social measures. it must take your| bet that if only you had found a way to work with the communist party would have a candidate in the second round and john mcmullen chung would have more votes than marine le pen. it is indeed a disappointing outcome but as he said two days ago it is quite clear we need to get the personal attacks labelled against john mcmullen shone with his ridiculous accusations of him perhaps being a friend of putin. —— ridiculous accusations against jean—luc melenchon. transnistria is going to win pretty comfortably but he does have a worry about how we will simply not bother to vote. indeed, very interesting factor. we will continue to watch and speak to a little later. david eaves froze. downing street has confirmed that borisjohnson has not received any further fixed penalty notices for breaking lockdown rules. the british prime minister has returned to the uk after a two—day trip to india. it was