this is bbc news. i'm martine croxall. the headlines at 11pm: the government steps up pressure on internet companies over access to encrypted messages. the westminster attacker, khalid masood, is thought to have used whatsapp moments before he killed four people. the home secretary says firms must act. we need to make sure that organisations like whatsapp, and there are plenty of others like that, don't provide a secret place for terrorists to communicate with each other. as the investigation continues, there's been another arrest. a 30—year old man from birmingham is being questioned. it's emerged people living close to the site of a major explosion on merseyside last night reported smelling gas at least 2a hours beforehand. more than 30 people were injured, two seriously. sinn fein says it's the end of the road on power sharing in northern ireland as talks break down ahead of tomorrow's deadline

in moscow, hundreds of people are arrested after the biggest opposition rallies in russia for years. good evening and welcome to bbc news. the home secretary amber rudd has increased pressure on internet companies in the wake of the westminster attack, warning them not to provide a secret place for terrorists to communicate. it's understood that khalid masood, who killed four people on wednesday, was using the secure whatsapp messaging service shortly before the attack began. our security correspondent gordon corera reports. are technology companies doing enough to combat terrorism? that was the question raised today, especially when it comes to encrypted communications. khalid masood was active on the messaging service whatsapp just before the attack. the company, part of facebook, says it is helping the authorities.

but they can't pass on content of they messages, because even they do not have access to encrypted data. today, the home secretary said it was not good enough. we must make sure that organisations like whatsapp, and there are plenty of others like that, do not provide a secret place for terrorists to communicate with each other. it used to be that people would steam open envelopes or listen in on phones when they wanted to find out what people were doing legally, through warra ntry, but we need to make sure that our intelligence services have the ability to get into situations like encrypted whatsapp. police say they are worried that technology companies are designing systems that won't allow for traditional surveillance. at the heart of this is a stark inconsistency between the ability of police to lawfully intercept telephone calls, but not when those messages are exchanged via social media messaging boards, for example. that's an inconsistency in society, it surely is, we need a solution

through appropriate legislation. but encryption is getting more popular as it protects ordinary people's data from hackers and criminals, helping to preserve privacy. that makes some nervous about giving the state new powers to restrict it. they have huge powers of investigation already and there is a question of always balancing the right to know, the need to know, with the right to privacy. phones, as well as messages, can be encrypted. after a terrorist attack in san bernardino in america, there was a row between apple and the fbi, who wanted a phone unlocked. we don't know for sure in this case of police could access khalid masood's phone yet. it might help to answer whether he really did act alone, as police think. encryption is an issue law enforcement and government have long worried about. in the coming week, technology

companies will be meeting with officials from here at the home office in a previously scheduled meeting. encryption is one of the issues where the government want tech companies to do more. the wealth of extremist content posted on websites is a high priority for the government, which fears its radicalising effect. it wants the companies to find the material themselves and take it down, rather than wait for it to be reported to them. there's no sign of new legislation in the wake of this attack. police have just got new powers over data, but authorities may be hoping they can put enough pressure on technology companies to change their behaviour. gordon corera, bbc news. there's been another arrest in connection with the investigation into attack, with a 30—year—old manfrom birmingham now being questioned. the police believe khalid masood acted alone on the day but have been appealing for more information from people who knew him or came across him. our home affairs correspondent tom symonds reports.

it took little more than a minute, a crude assault on the heart of westminster. he mounted the pavement at 2:40pm according to new information from the police. he drove fast, sending people running for cover, and 30 minutes later the sent people crashing over the railings. but he was out of the car and after attacking a police officer was shot dead half a minute later in the grounds of parliament. from start to finish, it had taken 82 seconds. so those are the facts, but why did it happened tellingly police now say they may not know the answer to that question but they are looking closely at khalid masood's life in an attempt to discover what motivated him. today yet another

home was being searched near his most home was being searched near his m ost rece nt home was being searched near his most recent address in birmingham. 0ne most recent address in birmingham. one man who lives around the corner is still in custody. we know khalid masood had a violent past but there we re masood had a violent past but there were times in his life where he may have adopted extreme political views, possibly while serving a prison sentence in 2003, or during two periods living in saudi arabia. 0r after moving to luton, around 2010, at a time of confrontation between young muslims and right—wing activists. the kind of people who commit terror... the answer to that question why could be complexed. they can be anything to between 15 and 28 different reasons, different tell—tale signs and my argument has consistently been that the government has successfully focused oi'i government has successfully focused on one, which we referred to as islamist ideology. ideology is important but it isjust one factor. this tragedy has again led to questions about the government's

strategy to fight radicalisation. those who have to spot tomorrow's potential terrorists say the challenge is daunting. well, birmingham remains of focus in this investigation, the last place where khalid masood lived, and the man who's been arrested, 30 years old in birmingham, being questioned on suspicion of preparing for terrorist acts. the 58—year—old man arrested a few days ago still being questioned, still in custody. a 32—year—old woman released from custody on bail. most of the searching of addresses going on is coming to an end but i think this really is the end of the beginning. tom symonds reporting. iraqi forces are intensifying their assault against so—called islamic state as they attempt to drive them out of western mosul. thousands of people have fled the city in recent weeks and there are conflicting reports about who was responsible for scores of civilian deaths in a single incident last week. the us says it's investigating but has stopped short of taking responsibility. with the city still

divided between is and the iraqi army, our correspondent 0rla guerin has been to a field hospital in the south of mosul. 11—years—old, shot in the leg. behind him, a boy of the same age, hit by a mortar. brought together in a field hospital by acts of war. uadi and mohammad, children of mosul. not safe at home, not safe when they flee. the beds are filling up here. ambulances have been arriving every few minutes. most of those we've seen being brought in are children. they've been injured by air strikes and also by shelling, but the staff here tell us they've also received a lot of patients who've been shot by is snipers. it is shoot to kill. isis is not messing around.

they don't want people to leave, and they don't care whether it is a child, a man or an old woman. everybody is being shot as they try to escape. people are saying it takes two isis militants to really keep an area under control, and prevent civilians from going anywhere. they want the civilians to stay inside to remain as human shields. kusei tried to break free with his younger brother, but udai was targeted by an is sniper. this footage, filmed by hospital staff, shows the anguish of abdullah. his five—year—old granddaughter, sara, is in the body bag. is shot her through the heart. but those who escaped the battlefield are bringing accounts of other innocent civilians. allegedly killed by their liberators. victims of bombing raids,

by iraqi and coalitionjets. akram mahmood insists that his brother was one of them. 0n the right, he says that his brother was a truck driver, and not a militant, and his guide all his life. hamad died on his own doorstep, he tells me. an air strike hit his car. five men were killed with my brother, says akram. i bury them with my own hands. the slogan from the authorities was ‘we're coming to rescue you, to free you from is‘. in reality, my brother has been killed, and lots of families have been destroyed. and in the camp nearby, the broken and the displaced reach out in desperation. after years of is tyranny, and months of warfare,

one more hardship for the people of mosul. 0rla guerin, bbc news, northern iraq. talks in northern ireland about forming a new power—sharing government have collapsed, just ahead of a tomorrow afternoon's deadline for a deal. this evening sinn fein walked out of negotiations saying they had come to the end of the road, raising the possibility of yet another election. 0ur ireland correspondent chris buckler is in belfast. there hasn't been much optimism about these talks. the parties had three weeks since the stormont collection back at the start of this month to try negotiate and repair the damage in relations which resulted in the collapse of power—sharing at stormont back in january. that's when the deputy

first minister martin mcguinness of sinn fein resigned and of course martin mcguinness died last week. but negotiations have been continuing at stormont and this afternoon sinn fein in a surprise move basically drew those negotiations to an end. they said they had come to the end of the road, the talks had run their course and they wouldn't be nominating their stormont leader, michelle o'neill, their stormont leader, michelle 0'neill, to the position of deputy first minister, the joint head 0'neill, to the position of deputy first minister, thejoint head of the northern ireland executive, tomorrow. as things stand the northern ireland assembly had been scheduled to meet tomorrow for the largest parties in theory to nominate the first and deputy first ministers, but would be the democratic unionist party bought first minister and sinn fein for the position of deputy first minister. but if those parties can't agree and if either of them decide they are not ina if either of them decide they are not in a position to nominate and can't go along with the terms of

being in government win the other then there is no devolved government for northern ireland. that's the stage we've got to. sinn fein saying unequivocally, no ifs, no buts, they're not going to be nominating for the post of deputy first minister, therefore the deadline will pass tomorrow with no power—sharing executive in place and northern ireland facing an even more uncertain political future. northern ireland facing an even more uncertain politicalfuture. the dup leader has issued a statement, pretty critical, what is her position? the dup leader arlene foster has issued a statement saying that there was little to suggest in her opinion that sinn fein wanted to secure an agreement. she says at every opportunity they've resisted involving the other parties, there we re involving the other parties, there were no around table discussions when all the parties were together over the course of these talks, and she says brew the course of yesterday sinn fein behaved like they were the only participants whose mandate mattered. so it's very clear she's placing the blame very firmly on sinn fein. sinn fein,

though, very firmly placing the blame on the dup and indeed on the british government and they say the two main sticking points if you like, the indications are that the two main sticking points we have our first leave the running of new organisations, new agencies to investigate killings from the troubles, and secondly a demand for an irish language act that sinn fein have made, they want legal recognition for the irish language in northern ireland, two major issues in those talks at the moment, two major issues at the moment as far as we two major issues at the moment as faras we can two major issues at the moment as far as we can tell can't be overcome. the headlines on bbc news: the home secretary says intelligence services must have access to encrypted messages. khalid masood is thought to have been using whatsapp moments before he carried out his attack, killing four people. it has emerged that people living close to the site of a major explosion on merseyside last night reported smelling gas at least 2a hours beforehand. sinn fein says it's the end of the road on power sharing in northern ireland as talks break down ahead of tomorrow's deadline.

dup leader arlene foster criticised the move. sport now and time for a full round—up from the bbc sport centre. it is been another full day of world cup qualifiers. england are still top of group f, after beating lithuania. jermain defoe was recalled to the starting line—up for the first time in more than three years, and opened the scoring for england, side—footing in raheem sterling's cross. he was subbed off in the second half forjamie vardy, and leicester's striker doubled the lead. it finished 2—0. meanwhile, has chris martin saved scotland and their under—pressure manager gordon strachan? his goal gave scotland their first win of the qualifying campaign, and he scored it with only two minutes left on the clock, as they beat slovenia 1—0 at hampden park. northern ireland completed a winning night for the home nations. they beat norway 2—0, the first goal coming in the opening 90 seconds, byjamie ward.

and the lead was doubled before the break, conor washington with his third goal in as many starts at windsor park. northern ireland stay second in group c, five points behind germany, and two clear of the czech republic in third. netherlands coach danny blind has paid the price for his side's woeful qualifying campaign. he has been sacked after they were beaten 2—0 by bulgaria in sofia on saturday, to leave their qualification hopes hanging by a thread . the netherlands sit in fourth in group a, with seven points from five games. to women's football, where fa cup holders arsenal ladies have been knocked out of the competition, after losing to birmingham 1—0 in the quarter—finals. elsewhere, chelsea beat sunderland 5—1, liverpool were 2—0 winners at home to notts county, and manchester city got a last—minute 2—1win against bristol city. the draw for the semi—finals will take place live on bbc radio 5live at 2:45 tomorrow. ferrari's sebastian vettel has won

the first formula 1 grand prix of the season, beating lewis hamilton in to second place in australia. it is vettel‘s first win since the singapore gp in september 2015, more evidence perhaps of mercedes's domination being over, after the introduction of faster cars. hamilton started in pole, but vettel had an advantage on pace and tyre wear, and took control after hamilton got stuck behind max verstappen after a pit stop. hamilton's new teammate valtteri bottas came third. at the start i wasn't entirely happy. at the start i wasn't entirely happy- i at the start i wasn't entirely happy. i think i was a bit... yes, too nervous. i was surprised, i thought you were going to do it.|j had a bit of wheel slip off the line, and then i had to take care of va ltteri bottas into line, and then i had to take care of valtteri bottas into turn one, and have a decent exit. after that i was trying to keep the pressure on to make sure that they get the message

we are here to fight, and obviously got a bit lucky when lewis came out in traffic. had been a great weekend for us in the team but in the race i struggled with the tyres towards the end. i had to stop a lot earlier than these guys because i ran out of grip, andl than these guys because i ran out of grip, and i stuck behind some of the red bull drivers, which is sometimes the way it goes. 0verall red bull drivers, which is sometimes the way it goes. overall a good race, all credit to the team and look at this crowd. thank you everyone for coming out today. it is always such a great place to be. two games in the rugby union premiership today, and wasps have moved five points clear at the top, after a 40—33 win over worcester. wasps had been behind during a frantic end—to—end first half. winger christian wade scored just before the interval, to level the match at 19—19 at half—time. with the game finely poised, worcester were reduced to 1a, winger bryce heem shown a red card for taking out willie le roux in the air. wasps made the extra man count, running in three more tries in the second half to seal the victory. saracens also beat bath 53—10. that's all for now.

the head of britain's biggest union, unite, has said thatjeremy corbyn should be given 15 months to see if he can improve labour's poll ratings. len mccluskey is standing for re—election as the union's general secretary. mr corbyn says labour is ready for a general election if one is called. meanwhile, mr corbyn has said he will oppose the government's plans to change european laws without full parliamentary scrutiny when they become part of uk law, because of brexit. the government wants to include the powers in its great repeal bill. more details will be published later this week. 0ur political correspondent alex forsyth has the story. what are we? we are europe! some still might not want it, but brexit is beckoning. the majority voted, and the government is about to start the formal process.

parliament will see the historic moment this week, followed by details of the government's plan to give control over uk laws to westminster, instead of brussels. some warn, as this complex work begins, mps must be involved. we're not going to sit there and hand over powers to this government to override parliament, override democracy, and just set down a series of diktats on what's going to happen in the future. so what does the government plan? it will introduce a great repeal bill, bringing eu regulations into domestic law — everything from environmental legislation to workers' rights. then the regulations can be changed or abolished, after brexit, to suit the uk. the bill will also include powers for the government to amend some eu laws during the process, without full parliamentary scrutiny. the government has already faced battles over parliament's role in the brexit process, and the great repeal bill looks like it could be the next big skirmish. some mps and peers fear they will be

cut out of key decisions. the government insists they will have a say, and says major policy changes, like new immigration or customs controls, will be subject to full scrutiny. but ministers say they do need the power to make small technical tweaks, like on picking some of the eu terminology. it will a limited and defined power, not to act like a dictator, by secondary legislation, and the scope, the scope, the definition of those powers and when they can be used, in what circumstances, is something that parliament will have to approve in boating through the bill itself. some resistance to the bill is likely. the sheer complexity of brexit means very little will be plain sailing. thousands of russians joined rallies across the country today to protest against corruption and call for the resignation of the prime minister, dmitry medvedev. several 100 demonstrators were arrested by police in moscow, including the opposition leader, alexei navalny. the kremlin has not commented on the rallies.

0ur moscow correspondent steve rosenberg sent this report. there were moments today when moscow resembled a battlefield. russian riot police broke up an anti—government protest, on what was a day of demonstrations across russia. in moscow, they detained more than 500 people. earlier, police had poured into the city centre, warning that the protest was illegal. still, thousands of people packed into pushkin square, to accuse the russian government of corruption. the level of corruption is too high in russia right now. and every single citizen understands it. it's hard to live in corruption atmosphere.

i have children, grandchildren, and i can't breathe in this. these people have come out to protest against government corruption, but the message which this is sending to the crowd is that fighting corruption is not a priority of the russian authorities. among those arrested, russian opposition leader alexei navalny. he says he intends to run for president next year. whether he will be allowed to isn't clear. it was alexei navalny who had called for today's nationwide protests. people took to the streets in more than 100 towns and cities across russia. in many cases, defying bans by the local authorities. these were some of the largest protests russia has seen for several years. president putin still enjoys strong support, but he can't take that for granted. steve rosenberg, bbc news, moscow. more than 30 people have been injured, two of them seriously, in what is suspected to have been

a gas explosion on the wirral. the blast caused extensive damage. it could be several days before people who live in the area can return to their homes. linsey smith reports from the scene. the scale of the devastation shows just how powerful the explosion was. one of the three businesses that stood here was a dance studio. just an hour before, it had been full of children. the blast was heard six miles away. this sound of the building blowing up was captured by a car's dashboard camera. explosion. oh, my god! 33 people were taken to hospital. there's a multitude of injuries that have happened, but the two patients that have gone through to the major trauma unit at aintree, they've had significant injuries. within one of the damaged homes, christine pickup had been baby—sitting her grandchildren.

i don't know how we walked out of there. i think the children, because the bed is slightly higher than the low windows in these old houses, the blast lifted the mattress up and threw it over the top of the children, ‘cause they said they felt things hitting them, but they weren't bruised or sore, and i think the mattress just saved them with the...masonry. police are now leading an investigation. a number of local people say they smelt gas yesterday and on friday. national grid engineers are at the scene, and say they have found no faults so far. with the scale of damage here, many residents will spend at least another night out of their homes. well, the community here say they are shocked by the events of the last 2a hours, but it will be some time before their quiet, residential

area is back to normal. not only does the rubble from the damaged building have to be removed, but beyond that, there are homes who simply have no windows or doors, because they were blown out by the force of the blast. that means there will be people here who are displaced for some to come. now it is time for the weather. he hears, live and dangerous. life, but not so dangerous. it has been a super weekend, the best of the weather over the weekend. in the sunshine today, 20 degrees. the skies not as blue earlier on today. sebastian vettel we have seen some contamination of theme, high cloud which is still around at the moment. there are some cloud coming up in nearby france and cloud is filling and across the north sea. right now we are seeing and across the north sea. right now we are seeing some and across the north sea. right now we are seeing some of this lower cloud moving around the area of high pressure into parts of england and wales and a few misty fog patches around elsewhere so some subtle changes overnight. still quite a

cold night, mind you. colderthan recently across more southern parts of the uk because the winds are much lighter. a touch of frost of the north in the countryside, that will lift in the sunshine. cloud wandering into northern ireland by the morning but much of mainland scotla nd the morning but much of mainland scotland will start cold but sunny and it will warm up fairly quickly. any missed and fog soon clearing. we have stubborn, low cloud filtering in of the north sea through north—east england, parts of the midlands, possibly in the east wales. missed and fog into that as well and the odd patch further south and east but some sunshine here as well. the sunshine will wind out the most of us. most of us will get a decent amount of sunshine. that area of low cloud, missed and fog shrinks. a few patches could linger into the afternoon, more particularly running in the coastal areas of north—east england and south—east scotland so quite chilly here. otherwise the numbers look very similar to what we had today. the highest temperatures again in highland scotland but also in the south—east of england where the winds are lighter, so temperatures should get that bit higher. but over

the week ahead we are going to get more and more cloud arriving, that is going to bring with it some rain especially in the north—west of the uk. southerly winds, decent temperatures by day, and not as cold overnight. the high pressure is shrinking away out into continental europe, and a massive area of low pressure dominate the atlantic, and that will influence our weather on tuesday and into wednesday, some longer spells of rain on wednesday and the first sign of showers on tuesday. a bit of a dull start for many northern part of the uk and then the showers coming from the south—west. could be heavy, heading up south—west. could be heavy, heading up eventually in the southern scotland. north—east scotland, the onshore breeze will be cooler and a bit grey, on the south—east of east anglia, there will be warm sunshine developing and temperatures up to 16 or 17 degrees. cloudy start on wednesday. stronger winds from the west. again it is a subtly dominic southerly. some rain in the west, the best of the dry temperatures in eastern england —— began —— again it

isa eastern england —— began —— again it is a southerly. hello. this is bbc news with martine croxall. we'll be taking a look at tomorrow morning's papers in a moment. first the headlines: the home secretary says intelligence services must be able to access encrypted messages. khalid masood is thought to have used whatsapp moments before the westminster attack. meanwhile, another arrest has been made as part of the investigation. it's emerged people living close to the site of a major explosion on merseyside last night reported smelling gas at least 2a hours beforehand. more than 30 people were injured, two seriously. it may be days until residents can return home. the deadline for the formation of a new devolved government in northern ireland is set to pass without an agreement after sinn fein said it would not nominate anyone for deputy first minister. northern ireland has been without a functioning devolved government since january, when the power—sharing executive collapsed. in moscow, hundreds of people are arrested after the biggest opposition rallies in russia for years. the country's main opposition leader

is among those detained. the crew on board the international space station think they've found life on mars. in the sci—fi horror film life is all what it seems? mark kermode will fill us in on the film review.