this is bbc news. the headlines at 11pm: the boss of british airways says a power supply issue was behind a major computer failure that has left thousands of his airline's passengers stranded worldwide. we are currently, as you can probably see behind me, a huge queue waiting for any information. my main concern now is that i don't want a two—year—old grandma spending the night on the floor. the terror threat level in the uk, which was increased to the highest status of critical following the manchester bombing, has been reduced to severe. army bomb disposal experts evacuate homes in moss side as part of an ongoing search linked to the manchester arena bombing. families of the victims of monday's attack visit st anne's square to pay their respects to loved ones. police release cctv images of manchester bomber salman abedi on the night of the attack as part

of a public appeal for information. arsenal win the fa cup final against chelsea in a thrilling 2—1, giving manager arsene wenger a record seventh victory in the competition. thousands of british airways passengers around the world have been stranded or had their flights cancelled after a massive computer failure. all flights from heathrow and gatwick were grounded for the day, bringing bank holiday misery for travellers. the airline says it's working to resolve the problem but has yet to confirm when the it

will be fixed. here's our business correspondent joe lynam. this is what happens after a catastrophic it failure, thousands of ba passengers starting their long bank holiday weekend. queues of people snaking out of the door at terminal 5 in heathrow. people have been standing in the queues for up to 70, 90, 120 minutes in some cases. the queue stretches from the check—in desks out to the back of the terminal and down in front of the terminal, where all the taxis deliver people. many passengers contacted the bbc with their experiences. we've just literallyjust now been told that nothing's happening, no flights till 6pm. prior to that we hadn't been told very much at all. there were no tannoy announcements whatsoever. travelling with my 80—year—old grandma for her birthday. it's a celebration weekend.

there's 13 of us going. we've heard nothing. we haven't been offered any chairs, any water, any vouchers. nothing. by this afternoon, the disruption was such that ba took the highly unusual step of cancelling all flights from heathrow and gatwick airport. this is the queue of customers leaving the terminal. and there have been severe delays for ba flights around the world. this isjfk airport in new york. and fiumicino in rome. british airways has cancelled all departures from heathrow and gatwick. customers were handed out leaflets advising them of their rights to a refund and compensation. ba said that a problem with the power supply had caused the it outage, affecting everything from check—in, to boarding, to baggage throughout the airline's global network and it apologised to its customers. a senior figure in the aviation

industry said an it failure of this magnitude was extraordinary and rarely seen. he added that ba had taken the right step to stop all departures. for some ba passengers, though, the long bank holiday weekend could be very long indeed. joe lynam, bbc news. earlier i spoke to the architect and tv presenter, george clarke, who had been at heathrow airport. i've actually just left terminal 5, i managed to get out and i'm in a cab on my way back home and i'm supposed to be in ibiza, i've got my three kids in the car, we're meant to be in ibiza sitting by the pull and enjoying half term. that was the most turbulent, badly organised days that i've ever experienced in britain andi that i've ever experienced in britain and i was quite embarrassed by it to be honest. i realised when such a major it infrastructure goes wrong, that's going to cause massive

repercussions. i understand that, i get that, don't think anyone really had problems about their flights being cancelled today, that's fine, it's one of those things but the lack of communication all day. there wasn't a single tannoy announcement, not one single tannoy announcement all day in the main departures terminal. we didn't have a single member of staff talk to us at any point to explain what was going on, i think point to explain what was going on, ithinka point to explain what was going on, i think a lot of the staff didn't know what to do, it wasn't even relayed down to them from above about what the issues were. i can't understand why we were even checked in this morning, i got there at 9:30am this morning with the kids and the system was down and they couldn't even checked us in, if you can't check us in and have a boarding pass then how can you have flight boarding pass then how can you have flight plans and the other technical data you need. i was told by one of the crew they didn't have a flight plan so that's why they weren't able to ta ke plan so that's why they weren't able to take off. on a simple level they have the passengers, the planes, the

pilots, it was all there but they didn't have the information they needed to do the checks and balances they needed to take off safely. i get that, and it failure, but the lack of communication, the lack of any information from any staff at any information from any staff at any point of day was laudable to say the least. i spoke to ross perot from an it company and he said that bosses need to learn from today's incident. it's a it'sa wake—up it's a wake—up call for executives of all organisations running critical national infrastructure. whether it is the incident two weeks ago or in this case a power failure, it shows how reliant we have become oi'i it shows how reliant we have become on these technologies. what does a power failure on these technologies. what does a powerfailure mean on these technologies. what does a power failure mean to you? typically there will be a data centre holding there will be a data centre holding the critical equipment whereby there is some power interruption, typically organisations plan and are prepared for this, they have

redundancy, resiliency, secondary data centres so it will be interesting to see what comes of this but it shows in terms of organisations being able to see what happened in their infrastructure and track down these problems quickly, better monitoring, better response, more rapid response and more preparing us around these kinds of issues. in the simplest terms i think a generator might have kicked m, think a generator might have kicked in, a backup power source. isn't that meant to happen? yes. 0k, they didn't have that. what does that say do you about the health of the a's it system? i'm not sure in this instance what exactly happened but most organisations have now moved to a mixture of cloud based technologies within their control, some of it is with third parties. if you look at the technologies themselves over the last ten years or so, there'sa themselves over the last ten years or so, there's a lot more interconnectivity within the systems, one of your colleagues was oi'i systems, one of your colleagues was on talking about the fact you've got to get your ticket then go through baggage and customs and line up with

your bag on the plane and if your bag isn't then you can't fly. it's notjust within the bag isn't then you can't fly. it's not just within the airline industry these systems have become interconnected, it's across the whole national infrastructure. when you said it was a wake—up call for the ceos that are so heavily reliant on systems that are so heavily reliant and extensively reliant on the cloud and internet, what do you mean bya the cloud and internet, what do you mean by a wake—up call, what needs to be done, just money and investment? there has been under investment? there has been under investment in most critical national infrastructure organisations, government departments, across the peace. if you look at it from a cyber crime perspective, which it isn't in this instance... are you sure? that's an interesting question, even if it was there's no obligation on organisations to say it was and that's why the eu are introducing in less than 12 months what is called the general data protection act, a regulation specifically making organisations mandatorily disclose if they have had a data breach, and they've got

72 hours to do it, and if they to do that or if the governing body believes they haven't done what they need to then there's a fine of up to 496 need to then there's a fine of up to 4% of their turnover or 20 million euros. so the table stakes are getting much higher and, as i said, the ceos and executive team, who typically are more worried about business issues and they leave i to be —— it to be run and they don't know what's going on, they need to start paying attention to this. and we'll find out how this story and many others are covered in tomorrow's front pages that's at 11:30pm this evening. my guests tonight are the deputy head of sport at the sun, martin lipton and the evening standard columnist, rosamund urwin. police investigating the terror attack in manchester have tonight released cctv images

of salman abeidi, the man who carried out the bombing on the night of the attack. they are appealing for information on his movements in the days before. detectives said they were building up a detailed picture of abeidi, his associates, finances and the wider conspiracy behind the attack. earlier two more people were arrested. from manchester our home affairs correspondent tom symonds reports. in a crowd, he would barely have been noticed. this is the manchester bomber, on the night he murdered 22 children, women, and men. a rucksack on his back, he'd flown in from libya five days before. police have released this picture, its background removed because they want information about what he did in that time. day and night they've crisscrossed manchester, raiding buildings, arresting people. this was moss side this morning. the area was cordoned off for a while with a bomb disposal team on stand—by.

there is no letting up. there were three more arrests overnight. we now have 11 men in custody. there is now 17 searches either concluded or continuing on various addresses, largely in the north—west of the country. in another raid this morning, armed officers blew open this door in cheetham hill, a suburb in north manchester. about three o'clock, i heard a blast. waking neighbours and making yet more arrests. local people have helped us establish the identities of the 20 and 22—year—old men arrested here last night and we've already been able to establish a link between one of them and a member of salman abedi's family. that's the pattern of the police investigation. start with the bomber, find out who his friends and acquaintances are, and arrest them. police are increasingly confident. tonight they revealed that, after the bombing at 10:33pm on monday night, forensic officers went straight in to examine the aftermath.

within two hours, they'd identified the bomber, possibly from id found on his body. they've tracked his movements from the family home to the flat he's said to have rented before disappearing to libya, returning on the 18th of may, to move into a city centre apartment where the bomb was likely put together. they've pieced together his network. friends and relatives are in custody. they're gathering financial evidence of who backed him but, crucially, they now know how the bomb was put together. that will help them judge the ongoing threat of another attack. people continue, as requested, to report their concerns. tonight again, the police were checking suspicious items, this time near manchester's main station. the bomb disposal team again on stand—by. the prime minister has announced that the threat level facing the uk is being reduced from critical to severe following the significant progress in the investigation. it means that an attack is no longer regarded as imminent, but remains highly likely.

in manchester, more flowers were laid in memory of the 22 victims of the attack. and the parents of 18—year—old georgina callendar, who died in the bombing, paid a moving tribute to their daughter. judith moritz reports. visible and armed, the police out on the streets, there both to protect and reassure the crowds. the threat level has been lowered, an attack considered highly likely rather than imminent. but soldiers will continue to support the police until monday at midnight. the independentjoint terrorism analysis centre has this morning taken the decision to reduce the threat level from critical to severe. the public should be clear about what this means — a threat level of severe means an attack is highly likely. the country should remain vigilant. it means that 1,300 events, happening across the country this weekend, will remain under

heightened security. at wembley, the fa cup, between arsenal and chelsea, passed off peacefully. at the let's rock festival in shrewsbury, the police mingled with the audience. and every one of the 50,000 spectators at radio 1's big weekend in hull are being searched at least once. the effect of the arena attack has been felt by millions of people and thousands have now been to pay their respects to those who died. 18—year—old georgina callander was killed in the blast. her mum was frantically trying to find her after the concert. today, she spoke about the moment that she discovered her daughter. there she was on the stretcher. they were working, doing resuscitation and taking her down the stairs. i was just screaming and shouting at her.

i was rubbing her hands. i was rubbing her tummy. i was rubbing herface. all the images are so vivid now. i can see everything. this evening, the teenager's parents laid their flowers alongside the others at the memorial which has become a focal point for manchester's grief. applause and then balloons flying free. there was applause, respect and love for a family needing comfort at this, the hardest of times. time for the headlines on bbc news. the boss of british airways says a power supply issue was behind a major computer failure that has left thousands of his airline's passengers stranded worldwide. the terrorist threat in the uk has

been reduced from critical to severe. police release cctv images of manchester bomber salman abedi on the night of the attack, as part of a public appeal for information. that's find out what is happening in the sporting world, from the bbc sports editor. here is jam. —— from the bbc sports centre. —— here is james. arsenal have won the fa cup, beating the premier league champions chelsea 2—1. aaron ramsey scored the winner in the closing stages of a dramatic match. it was a record seventh fa cup win for the arsenal manager arsene wenger, whose future at the club remains unclear.

david ornstein reports from wembley. security was understandably tight as wembley welcomed 90,000 fans for the show piece of english football. after an impecably observed minute's silence, arsenal made a blistering start, opening the scoring through alexis sanchez. commentator: sanchez is in to score, the flag is up though. the goal given after suspicions of handball and offside in the build up. it could have been worse for chelsea. gary cahill making two goal—line clearances and they were also rescued by the post. the premier league champions suffered a further set—back after half—time. victor moses shown a second yellow card for diving. but that briefly rallied the ten men. diego costa with the equaliser. no sooner, though, had chelsea finished celebrating than arsenal were back in front. aaron ramsey timing his arrival to perfection. his club now the most successful in the competition's history. so at the end of a vintage fa cup final, chelsea's dreams of the double are ended by arsenal. an otherwise disappointing season for the gunners finishing in glory. this team has suffered

and united and responded. i said that last week this team would win the championship with one or two good buys, and keep them together. i think we're on a good way. despite today's success, questions remain offer the future of wenger — whether he stays or goes, he's certainly made his mark. celtic have won the scottish cup to complete a remarkable treble, adding it to the scottish premiership and league cup, and going undefeated for the entire domestic season. but they left it late to beat aberdeen at hampden park. the game looked to be heading for extra time when tom rogic scored the winner in the second minute of injury time. they might have struggled in europe, but brendan rogers‘ invincibles have dominated the game in scotland in his first season in charge. it has been a dream. you could never

have sat down, any manager, coming in at the beginning of the season, and write down what we would have done. letter to the players, just before they out, that this is a game where you want them to write it down later. the second half of the ticket, they were brilliant. —— as i said to be players, just before they went out. in rugby union, exeter chiefs have won their first premiership title. they needed extra—time to beat wasps 23 points to 20 in a thrilling final at twickenham. it was all square after 80 minutes. a penalty kicked by gareth steenson was the only score in extra—time, meaning that the chiefs, who lost last year's final, were crowned champions. it was only seven years ago that exeter won promotion to the premiership. and scarlets have won the pro 12 final in dublin. the welsh side ran in six tries to beat munster 46—22. a historic day for the llanelli team who become the first welsh champions for five years. they've done it the hard way —

by winning twice in ireland in the play—offs, first against leinster and now the table—toppers munster. cricket, and england have won the second one day international against south africa in southampton to take an unassailable 2—0 lead in the series. south africa looked to reach their target of 331, but a superb final of bowling by mark wood enabled england to cling on and when that two runs. england have a spring in their step, supposedly the best side in the world. and you don't get there without a little bit of luck. joe roofs without a little bit of luck. joe root‘s bright start was cut short, cut out any corners. in cannes ben stokes, and he was properly drops, twice, in the first two balls. they we re twice, in the first two balls. they were costly errors. stokes had been a doubt for the match, but any question over his fitness now was

put to the side. he got 101. south africa now choosing to a car they set about with a calm assurance, but had they waited a look too long? with quinton de kock on 98, disaster. south africa, though, won't done yet. with ford needed from the last ball, it was too much to them. the best side in the world, and england have beaten them again. —— with number four. and england have beaten them again. -- with number four. there will be a big test, especially when the real pressure is on. they are the number one in the world. it is to be tougher as with expectation, now, but we have some great matches and a very strong team. britain's kell brook is currently fighting for the ibf world

welterweight championship against the unbeaten errol spencejunior in sheffield — if you like you can listen to live commentary on bbc 5 live. earlier at bramall lane, george groves took the wba world super—middleweight title with a stoppage victory against russia's fedor chudinov — his first success in four world title fights. lewis hamilton says he's devastated that he'll start the monaco grand prix from 12th on the grid. the briton couldn't explain why his mercedes was so off the pace in qualifying and his final attempt to get into the top ten was thwarted when a mclaren crashed ahead of him. kimi raikkonen will start from pole, meanwhile, 31st over nine nine yea rs, meanwhile, 31st over nine nine years, with championship leader and teammate sebastian vettel alongside him. that is all the sport for now. ok, let's have a quick look at some of the front pages. the observer leads with expert calls

for the government to keep co—operating with the eu on security and intelligence after brexit. the sunday express talked to theresa may about her meeting with some of the victims of the manchester attack. like many sunday papers, the mail on sunday carries a cctv image showing the manchester bomber, salman abedi, moments before the attack. the uk's security minister has told the sunday telegraph that social media firms are not doing enough to tackle extremism. and the sunday times talks about the conservative party wanting to relaunch its campaign after labour narrows the gap in the polls to the single figures. other news, now. an elderly couple who were stabbed to death at their home in county armagh have been named. a relative found the bodies of michael and marjorie cawdery, who were both 83, in portadown yesterday. a a0 year—old man has been arrested and is still being questioned. the so—called islamic state group

say their fighters were behind a shooting in central egypt yesterday. 28 people were killed when masked gunmen opened fire on a bus taking a group of coptic christians to a monastery. the egyptian military has carried out airstrikes on militants in libya in retaliation. president trump has said he'll make a final decision whether to maintain the us‘s support for the paris accord on combating climate change next week. he's among the leaders of the seven top industrial nations meeting at the g7 summit in italy for the final day of talks. our correspondent, james reynolds, has been following developments in sicily. well, there is a realfault line within the g7 on the issue of climate change. on the one hand, you have the group of the gtx, and they 110w have the group of the gtx, and they now stand against the g1. —— the group of the g6. the final

communique said that the six remained committed to the paris cargojet agreement, remained committed to the paris cargo jet agreement, and the remained committed to the paris cargojet agreement, and the united states continues to review its policy, with donald trump himself tweeting he will reveal his final decision in a week's time. it matters because if the united states decides to withdraw or two —— to reduce, it could put the deal in question. by far the biggest music event to take place in the uk since monday's terror attack has been taking place this evening. the courteeners, a local band with a huge following, have sold out the 50,000 capacity old trafford cricket ground. but the event is very different from the one originally planned. our entertaiment correspondent colin paterson is there. the courteeners.

this gig sold out six months ago. after monday's bomb attack, the band decided it would still go ahead. their singer liam fray told me why. if this hadn't have happened, it would have sent out a really bad message, ithink. people shouldn't be — people should be allowed to go and enjoy themselves, without being scared. we are absolutely coming because it's what we do. it's what we love. we're not going to be deterred by anybody, or anything. i'm a married man. i've got a kid and all that. at the end the day, you've got to live your life. you know what i mean? you've got to live your life. now this is not normal at a gig to have armed policemen on the door. but, even with this level of security, some die—hard fans have chosen to stay away. the first time isawthe—courteeners it was actually at the arena. he sold his tickets.

ijust know i wouldn't enjoy it. i wouldn't be focusing on the music. i'd be focusing on if i saw anything suspicious, or... i wouldn't be listening to the music, i'd be watching everything else. but abbey and pete weren't going to let their big day be spoiled. they'd already decided to turn the gig into their wedding reception, buying 68 tickets for guests. what we do in manchester is we go to gigs. that's why we've had the wedding that we've had. so, we just carry on. we're with our mates tonight, our favourite band. so, we'rejust going to do manchester proud tonight and have a big party. but tonight has also been about remembering those killed on monday. this is our manchester. our manchester. and the bees still buzz! gregg allman, a founder of the allman brothers band, has died at the age of 69. his band was one of rock's top acts of the 1970s. but his career was marred by tragedy

as two of his fellow band members, including his brother duane, were killed in separate motorcycle accidents. gregg allman also suffered alcohol addiction for many years. now it's time for the weather. and we will cross to the newsroom. phil is looking as sharp as some of the weather we will be a lot of thunderstorms around today. that was triggered off me and steamy day for some areas. cardiff, that was triggered off me and steamy day forsome areas. cardiff, i know you're at the bottom of this league, but it is not bad to mr media. further north, things came together in the atmosphere to really pop of the thunderstorms. i say pop er; thehifiiétfiflgs if? efie aft é it was 555 55555e555fl5‘5 555 555 aft 55 it was hardly “is: a . 555 5555555555515 555 555 555 55 it was hardly “is: a mention. 555 5555555555515 555 555 555 55 it was hardly “if: a mention. but it was hardly worth a mention. but oui’ it was hardly worth a mention. but our weather watchers were all over

it. thunderstorms which is coming through. a lot of people expressing that sort of hail. a lot of water flying around as well. —— tomorrow morning, that will start fresh, i would think, in selling candies. maybe single figures. in cooler night come in a matter where you are spending it. a little bit of mist and fog in the south. still some cloud left over from saturday across the western side of scotland, at least a time, and that gradually moves further north. later in the morning, and into the afternoon, at this but the rain pushes ever further north across the south—west. a very dull start on the western side of scotland, things will improve, especially the south—west. maybe a shower on the eastern borders, the north—east of england, lair—2.5.5; 4l}. 55,555,5554 5; 55,552,512” .. of england, parts midlands, eastern parts of englané¢ fine,

the day. no skipping 3 throughout the day. no skipping the fa ct throughout the day. no skipping the fact that behind me, there, much of the south—west will have a wet and to the afternoon. that rain will move further north through the evening and into the wee hours of monday, bank holiday monday, and that. line—out, it turns muggy. we may pop off a fume or thunderstorms as the temperatures get never lower as the temperatures get never [jewel 15§16 as the temperatures get never [jewel 15g 16 celsius. one of those days. then, northern is one of those days. then, northern ireland, too. temperatures to the south—east will get to 22, i at = ireland, too. temperatures to the south—east will get to 22, i at 25 “55 5 for am..- an}. n,- monda to tuesda , a weather anglia. monday to tuesday, a weather front comes through, pushed through by some strong winds me and just into the middle part of the week, high—pressure takes over, and things really begin to quieten down. i will see later. hello.

this is bbc news with lukwesa burak. we'll be taking a look at tomorrow morning's papers in a moment. first, the headlines: failure that has left thousands of passengers stranded'and grounded'e all flights from heathrow and gatwick. ba says it hopes to get passengers onto the next available flights over the bank holiday weekend. status of criticalfetlewing' , 757 5 ~ the manchester bombing, there will be more arrests and there will be more this will be more searches. but this ‘ clarity greater clarity and thispregzess left the independent body that

has left the independent body that assesses threat to come to the judgement that an attack is no longer imminent. police and army bomb disposal experts evacuate an area of moss side as part of an ongoing search linked tp the: manchesterfirfifiapfim’mn? appealfor information. arsenal win the fa cup final against chelsea in a thrilling 2—1 on meet the author this week my guest is the best selling novelist guestisthe bestselling npuelistu, ann guestisthe best selling npyelistu, a n n patchetv hello and welcome to our look ahead to what the papers will be

bringing us tomorrow. with me are deputy head sf spsrt atertheh—sun?! martin lipton, and the evening standard columnist, rosamund urwin. tomorrow's front pages, starting with. .. sta—operating with the eu ef‘rsecurity