suicide bomber, salman abedi, on the night he carried out his suicide attack. 11 people connected to him have now been arrested. meanwhile the authorities have lowered the threat level of a terrorist attack from critical to severe. british airways says it's aiming to operate a near—normal schedule at gatwick airport and most services from heathrow on sunday. tens of thousands have been stranded around the world because of a computer failure. trade unions say the problems were a result of making it staff redundant last year. world leaders have left the g7 summit in italy without agreeing a joint statement on climate change. president donald trump refused to recommit the united states to the paris climate accord, even though the other leaders did. music fans attending the first major concert in manchester since monday's attack have been told that "terror will never prevail." a huge security operation was in place for the gig by local

band, the courteeners, at the city's old trafford cricket ground. it was a sell—out event — but very different from the one originally planned. our entertainment correspondent, colin paterson, was 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, i think. 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 i saw the courteeners it was actually at the arena. liam wilks has attended every courteeners gig in manchester since 2011, until tonight. 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! now on bbc news, it's time for the travel show.

coming up this week on the travel show: gigantic metal elephants. how one tweet saved a rhino. and exploring london's secret tube network. the top speed is about 35 miles an hour. that is pretty fast. we start this week on france's river loire.

along its banks you'll find some of the country's most impressive history. a chateau there were visited by the likes ofjoan of arc, leonardo da vinci and eleanor of aquitaine. but we sent keith wallace to the city of nantes to find out how the region's industrial past is being used to inspire a new generation. just over a decade ago, this little island in the loire was a scrap of wasteland close to the centre of nantes. a three—mile stretch of brownfield site, home only to the odd artist who had gone there in search of peace and quiet. but it didn't stay peaceful for very long. in 2007 this, the great elephant, began taking its daily constitutional.

people came from all over to hitch a ride in its belly. and, as it prepares to celebrate its 10th birthday, they still come. so this is how you make an elephant roar from inside its body. elephant roars. laughter. that was incredible. it's so low—tech. you can feel the whole thing pull against your body as you're doing it. this is the thing that i love. all of these switches are twitching every time the elephant‘s moving. it's so organic, it's incredible. the elephant rides form part of the first huge push to turn the fortunes of nantes around. the industry that had recently departed had left a huge ugly scar

just a stone's throw from the historic centre. it's a crazy project when you think about it, when they proposed to the city to create an elephant that will carry people on his back and go around on the isle of nantes. i mean, you have to ask money for that, you can imagine that people were quite surprised but the fact is that they managed to reach the challenge and to make it. i mean, there are loads of cities that have old industrial quarters that have been taken over by arty types but this is different. this is about rivets and metal and wood and workmanship and for a very good reason. they built ships here. in the mid—1970s, 60,000 people made their living on this island but the ships started getting bigger and bigger and the loire was too narrow this far upstream to accommodate them. 30 years ago, in 1987, the last yard closed.

these days, the old buildings are occupied, not just by the elephant, but by a whole menagerie. francois. you're in a spider! all the animals began life inside the head of francois and he still gets a kick out of the drama. she waken. she wakes up. she wakes up! how long did it take to build? 0h, six months. can i move the head? too many play it like... with feeling, you understand? with feeling. feel it, please. feel the spider. and these are all dockyards, aren't they, and they still feel

like it, that's intentional. but there's another influence, the adventure writerjules verne was a son of nantes and his book, 20,000 leagues under the sea inspired the island's gothic carousel. quite high up.

yeah. do we control how high it is? no, we can't. we are on the top level precisely and under we have the deep sea and then the level of the sea and at every level you have different machines. the idea is that you make a trip and to dream basically. these will flap. so activate. flying as it goes up. this one is flapping now. no, we can do it any time. we can do what we like. yeah. we are on holiday! since the carousel was built, it's possible that nantes skyline has become one of the most distinctive in europe and it's about to get even weirder.

a 45—metre tall artificial tree complete with mechanical herons will offer tourists flights. building work on that is scheduled to begin soon with a finish date estimated for 2021. keith wallace in the french city of nantes. and if you're thinking about heading there any time soon, here's the travel show‘s top tips. the voyage of nantes is an urban trail that winds several miles through the city taking in dozen of artistic and historical sites. the distinctive green line will take you around all sorts of treasures, some of which are created especially for the summer and many of which are free. we have about a0 artists everywhere in town with great installation, follow the green line, it's kind of for children to discover the city

with their parents. at the end ofjune the museum of fine arts reopens after a six—year closure. it's been redeveloped and expanded and will become one of the region's largest galleries. treasures include works by picasso, kandinsky and max ernst. if you want a glimpse of some of the region's most important chateaux, head a couple of hours up the river to places like chambord, amboise, loire. they're not only historically important, they're also beautiful to look at. and finally, if you fancyjoining in the great elephant‘s birthday party, it's being held onjune 30th. the venue is across the river at the old quarry where the heron tree will one day be built. entry from 8.30pm is free. next this week, london by night. the latest in our series looking at what the city gets up to after dark.

this time we're off to meet baker street's nocturnal florist. we are 2a/7, so it never close. yeah, we don't have keys. we can never shut down, if something goes wrong. my name kaleem and i work at flower station as a night shift supervisor. it's used to be a petrol station about 13 years ago but since then it's a flower show. our customers at night are kind of, you know, especially what i believe lovers. when they fight with each other one thing can fix that relationship, it's flowers. one time somebody came aam, he said that a search on google, only one shop open 2a/7, let's go there and fix it. the reason i am buying flowers

in the middle of the night, i have finished my shift as a taxi driver, it's my wife's birthday tomorrow and hopefully this will be a nice surprise for her. yeah, i was looking at the purple ones, as well. sure. perhaps this one here. 24/7 really helps people in australia and america and different parts of the world. when they want to be afternoon, everything going to be closed here. celebrities, sometimes they come and they choose their own flowers, they feel like they are in their own heaven or in back gardens. in centre of london you can never have that. we don't print out any letter and send it to customer, all of our cards are handwritten. we have a special team. i am the one at night time who writes letters if any owner comes. at night it is peaceful,

everybody is sleeping but we are working. for me flowers are everything. i was thinking if i have a girl, maybe girl i will give her a name dahlia. it's a flower name, it's one of my favourite, dahlia. i think flowers are the one thing which can connect you with the nature. stay with us because coming up on the travel show. a neat way to book new york hotel rooms by the minute. and i'm in london exploring the secret tube network that's about to be opened to the public for the first time. you're going to get a dodgy back if you're walking down here all day.

the travel show, your essential guide wherever you're headed. time now for trend and travel, your monthly mash—up of the best travel—related stories, snaps and videos online. a few months ago we met the tiletsons. they launched a huge social media campaign to find one lucky nanny who would join them on a once—in—a—lifetime trip around the world. well, almost 25,000 applications later, they found their new travel companion. it was such an honour, to have so much attention on us and so many people saying yeah, take me. the lucky nanny is from texas, usa. i called them and they were like yeah, we wanted to see how your week has been and derek goes, can we switch over to facetime. and i am like oh, obviously i have the job, there was no way they're going to facetime me to tell me i won't do it, that'sjust rude! the group set off injuly and will be blogging about their adventures.

travel packing for your next trip? this kickstarter project has a solution. the unique travel set packs seven pieces of women's clothing down into a single lightweight bag with 30 different combinations. the project hit its funding target earlier this month with a rollout planned for later in the year. off the red eye? in need of a quick rest? recharge is an app that lets you book luxury hotel rooms by the minute. it'sjust launched in new york offering customers a chance to use the rooms in the daytime. perfect for a shower and a nap. but be warned, if you're still there when housekeeping arrives, it's a $250 fine. so don't forget your alarm clock! and finally, one tweet managed to save the life of an endangered rhino. after reading about a sumatran rhino with a dangerous abscess, adam posted this call for help. i immediately tweeted

at saving the survivors, and they put together an international crew of vets that performed a highly successful operation. the rhino has now recovered and is living at a sanctuary in malaysia. the sumatran rhino is one of the most endangered species on earth. there are fewer than 100 of them left and if we're going to save them from extinction every single last one counts. thanks to everyone who sent us their pictures this month using the hashtag travel tuesday. here are some of my favourites. richard was in hong kong when he snapped the daily light show. and no prizes for guessing where this was taken, a famous landmark. don't forget to check our twitter and facebook feeds for loads of extra special travel show content. now let's look at the travel videos clocking up the views online. surf's up! with the european summer fast approaching, we ride the waves with some of the internet‘s

surfing stars. they're few and far between. they surf these waves a couple of times a year but when we do, it's well worth it. in my opinion, what makes a great surfing film? something really trippy. we're just having fun. you got to go for it with what you got. don't sweat too much. you need to know your way around the ocean. it's not for the faint—hearted. and if you don't know what you're doing out there, you can find yourself in a lot of trouble. and if you see anything you think we should know about, don't forget to get in touch. let's finish this week deep underneath london. mind the gap...

final preparations are under way to open to the public an underground train network most londoners will never even have heard of. until 2003, it belonged to the royal mail. its tunnels snaked between and alongside the regular tube, the one that we all know about. i've been told to come to liverpool street station, the capital's gateway to the east of england, to see it for myself. this really is the bowels of liverpool street. i think there's a set of stairs i am meant to go down. yeah, right here. that's better. you can actually hear the old tube trains kind of going down so we must be at that level. the station mirrors its counterpart on the central line just above us. itjust lacks that nice tiling and polish. hello, is it ray? yeah, it is.

hi, how are you. i am henry. nice to meet you. it's amazing, isn't it. it's almost like stepping back in time, isn't it? it's pretty much how it was when we shut in 2003. nothing much has changed. ray's worked down here ever since it was decommissioned. he is one of three making sure the tunnels are dry and safe. how would it all work? after a letter is received at a sorting office if it needed to be transferred to the railways or another sorting office it would be bagged up and sent down to us and our trains ran it from east london at white chapel to paddington in the west and it was a loop and we would send trains round and they go continuously go around 22 hours a day with a six—minute gap between trains. to the depths we go. this is the under—platform area. yeah.

this was the 150 volt power supplies for powering the trains around the stations. if i hold that up there you can work the handle. pull it down. it's heavy, isn't it? if i release that coil it will drop out. wow! not for the faint—hearted. now that there are no trains running through here it's safe to walk through. just down here? yeah, just down here. well, the whole railway is six—and—a—half miles long but there's 22 miles of track laid because it's double track and sidings. it was dug by hand. these are built on the hill, so as the train approached it could naturally decelerate. and as the train departed it could naturally accelerate. you're going to get a dodgy back if you're walking down here all day. you could develop the mail rail walk. the mail rail walk! this was a 19805 mail train.

right. still smaller than i thought they would be. they're sort of half—size, we use a two—foot gauge so it's quite narrow and they were unmanned, so they were automatic. the top speed of one of our mail trains was about 35mph. 35mph. the top. the average speed was much lower. that's fairly perky, though, it is pretty fast. mail rail was very busy, there were lots of people here, lots of differentjobs going on. it was a noisy environment with trains coming in and out. lifts coming up and down and people pushing mail containers around, it was quite a lively environment. and very soon paying customers will be able to see this for themselves. in the next few weeks, a brand new postal museum will hope here at mount pleasant in central london. they're actually moving all their archives to a purpose built centre just over the road

and the highlights will be put on display. oh, wow. look at that. that is amazing. so what is this room for? this is traditionally the heart of the network. this is where all the locomotives would have been worked on and this will be the centre of the post room museum experience. sorry to point out the obvious, but what is this thing? so, this is one of the new locomotives. the centre piece will be a ride through the tunnels below on the modern equivalent ofa mailtrain. push that back. 0h, right. ok, so this is where the driver will sort of sit and co—ordinate. exactly. 0ne train driverand one guard per train. it's a huge project so there must have been some challenges that you guys came across, what were the biggest?

we started off very much from the point of view of it can be done and being honest we probable thought there was a reason it couldn't be done. and as we got further through the development i think we realised kind of how much the public wanted the tunnels to be opened up again. so do you think the british public find an affinity with the postal service here? certainly hopeful so, yeah. the collections that we hold represent 500 years of serving the public really. and constantly innovating and constantly changing and certainly in terms of post offices they've been the glue that's often held the community together. while the ride is clearly the main attraction, the routes of royal mail go all the way back to henry viii. so the archivers have some rich pickings to choose from as they assemble the new exhibition. the post room museum is scheduled to open injuly. i'm afraid that's all the time we have for this week. butjoin us next week when: i head to istanbul to take in the sights and sounds of a city that combines two continents and thousands of years of history. along with some of best turkish baths in the world. with a good scrub you get a bit of water on the head... 0h, cold water!

catch that if you can. but from me, henry golding, and the rest of the travel show team here deep underground in london, it's goodbye. hello once again. we really crammed in a great deal of weather across the british isles during saturday. bright enough for many, and the temperatures really responding to that, as well, 27,

again, around the murray firth, down across east anglia, and on the eastern shores of england. but all that heat eventually sparked thunderstorm activity. a lot of you telling us about that on our twitter feed. and it was really there to be had right across the north of england. spectacular amounts of lightning for some of you. but underneath it, my word, what a drenching to be had. notjust of rain — a lot of you reported on the hail, and for some, my word, it alljust passed you by, and it was a glorious day. first off on sunday, a fresh start for many. single figures in some southern counties. a dull old start or the north—west of england, then arching through north—west scotland, and a chance for a little bit of rain on the breeze. once again on into the day, a lot of fine weather, maybe one or two showers on the eastern borders of england and scotland. further west, dry, fine for the most part. bits and pieces of sunshine coming through boosting temperatures. northern ireland would do nicely. dry weather there.

so to across the north of wales, northern england, that south and west, there is the next belt of whether gradually working its way in from the south—west. not the fastest thing on two legs — it will take time before you see any evidence of that getting up towards london. it will be late in the day before some of that rain begins to break out towards the meridian towards east anglia. behind, much muggier air and coming back into the south of the british isles. that could spawn some quite strong thunderstorms in the wee hours of bank holiday monday. temperatures will not be lower than 1a or 16, a fresher feel before the rain belt. bank holiday monday, the rain further north the area most at risk of seeing temperatures soar away again with the attendant thunderstorms is east anglia and the south—east. that's a little fresher, quieter, across the south—west. monday into tuesday, an area of low pressure just throws this weakening weather front across the british isles. notice the number of isobars.

quite windy until we get to wednesday, when it will settle down. and on into thursday as well, with the high pressure building in. with the passage of the weather front, and some rain in the midweek — it will be a good deal quieter. this is bbc news. i am lebo diseko. 0ur this is bbc news. i am lebo diseko. our top stories: moments before he killed, the manchester suicide bomber caught on cctv. tens of thousands of passengers stranded around the world — but british airways says it will get services running again on sunday. hello. good to have you with us.

police investigating the terror attack in manchester have released cctv images of salman abedi, the man who carried out the bombing, on the night of the attack. they're asking for information on his movements in the days before. detectives say they're building up a detailed picture of abeidi