the rising tide of knife crime in britain — now the number one murder weapon — it's being carried by growing numbers of children. we need to step right back to nine—year—olds, eight—year—olds, and guide them in a better direction, and that's all over the uk. plugging into the future — volvo becomes the first carmaker to ditch petrol and diesel only cars. and a straight sets win for andy murray takes him through to the 3rd round at wimbledon. and coming up in sportsday on bbc news: warren gatland keeps faith with his 15. the lions coach names an unchanged team for their deciding test against the all blacks on saturday. good evening. the american ambassador to the united nations has described north korea's latest missile test as "a clear and sharp military escalation" — one that has made the world a more dangerous place. it has been confirmed that the intercontinental ballistic missile fired by north korea for the first time yesterday, could have a range of more than 3000 miles — meaning it could reach alaska. the us ambassador, nikki haley, told an emergency meeting at the un that america was prepared to use the full range of its capabilites to deter north korea — including military force if they must. and she said america would now propose new un sanctions on north korea. here's our diplomatic correspondent james landale. today, on the coast of south korea a barrage of missiles, fired by local and us forces. a simulated attack on the leadership, a show of force and retaliation, backed up tonight by ha rd word retaliation, backed up tonight by hard word that the united nations security council. translation: today isa security council. translation: today is a dark day, a dark day because yesterday's actions by north korea made the world more dangerous. there are legal —— darron lee goal —— there are legal missile launch was not just dangerous there are legal missile launch was notjust dangerous but reckless. it shows north korea does not want to be part of a peaceful world. with this launch of an integral antic —— intercontinental ballistic missile, it shows it wants to threaten a numberof it shows it wants to threaten a number of states and indirectly the whole world. this is the cause of their concern. yesterday's launch what the us now admits was in north korea's first intercontinental ballistic missile. which experts claim could carry a nuclear weapon as far as alaska. today, north korea claimed the test had shown its warheads could withstand the heat of re—entry into the atmosphere, a crucial step forward if proof. no wonder the country's leader kim jong un looked so please, no wonder he was quoted as saying "the yankees must be quite unhappy with the gift we send them on their independence day". the problem is that so far the international response has been divided. president xijinping has called for restraint, and russia has warned against any pre—emptive military action. translation: for russia and china, it is absolutely clear that any attempt to justify a military solution using security council resolutions as a pretext, is unacceptable. but it is china's reluctance to use its economic clout against north korea which has angered at donald trump. as he left the european complained about the growing trade between both countries, saying on twitter, so much for china working with us but we had to give it a try. the question is what else the us might do. today's joint military exercises were designed to show what commanders said could happen if us self restraint were lifted. i'm sure they will be looking at a military option. it's their bases under threat, their seaboard which is now within reach. but whether any other country would be asked to come and help is, at the moment, hypothetical. tonight, donald trump arrived in poland ahead of the t20 summit, where the crisis will be high on the agenda but where a united response looks unlikely. and james joins us now. you're in poland, where donald trump has just landed. what more can the americans do to deter north korea? i think there's certainly a lot more the international community could do. the un could impose an oil embargo on north korea, restrict access to its airline, to finance under a lot more. tonight the united kingdom and france saying they would be synthetic to tighter sanctions. the problem the united states has is getting the support of countries like china and russia. i think that is why the united states is now contemplating unilateral action. in other words, imposing trade restrictions on those countries that continue to trade itself with north korea, in violation of un sanctions. the bottom line is this, i think, north korea has been subject to sanctions for over a decade now and it seems to have made very, very little impact on its efforts to secure for itself a nuclear weapon. so as world leaders gather here and in hamburg in germany in the coming days for the ge 20 summit, the question will be this, if not sanctions, what else? —— the g20 summit. james, thank you. police say they have recovered the last of the visible human remains in grenfell tower three weeks after the building was destroyed by fire. but they've warned that the remains of some victims may never be found. meanwhile a specialist task force is being sent into kensington and chelsea council to take over the running of key services, after their response to the disaster was heavily criticised. our special correspondent lucy manning reports. the missing posters have been here for three weeks, they flutter is a painful reminder because time has not brought any answers. now the police search through the 15 tonnes of debris on each floor, still trying to find all the grenfell victims. carrie mazzilli was at the meeting the police and coroner called last night. his uncle, hesham rahman, is missing from the 23rd floor. he went over to comfort, you know, some young children, which for me is very heroic cost up i want that to stick and stay with the family. we may never know if my uncle is ever going to be found. the family isjust uncle is ever going to be found. the family is just broken. there's uncle is ever going to be found. the family isjust broken. there's no way of fixing them. this is something that can never be fixed. they want to be able to bury their loved ones, pray for their loved. say goodbye in any way, shape or form, and it sounds like all we're going to have is the brief on his flat, which isn't good enough. so... sorry, karim. yeah, yeah. the police now say they have recovered all the remains from the building that were visible, and 87 recoveries, as they put it, have been made, but they stressed because of the catastrophic damage that doesn't mean 87 people, and they still can't say how many have died. meanwhile, survivors struggle carrying bags of donated food back to their hotels. three weeks and you will have housing, was the promise. this survivor didn't want to be identified, scared of being seen to criticise the council. ididn't criticise the council. ididn‘t take criticise the council. i didn't take them up on their offer, they were very expensive, the rent. although they promised they would pay for a whole year, i didn't have to pay for a year, but after that i said, put it in writing and they said legal documents are not ready yet. people would prefer to stay in their emergency temporary accommodation within hotels and make one move into permanent accommodation, so there have only been 14 acceptances so far. you would like to move the children away from here? yes. residents are feeling scared, let down. a panic this afternoon when nearby businesses were evacuated left families fearing the tower was unstable. one centre out of 100 centres sensed one millimetre of movement, so that's why the alarm went off. don't tell me nothing, how dare you! police withdrew from the tower. and at a public meeting at the mosque tonight, there were cries of anguish from the families. the woman said to be the new council leader was there to listen, on the day ministers sent in a task force to run some of its services. we will do absolutely everything we can as a council, to help our community and to help our community heal. you don't think the council should be taken over by outside commissioners? the council isn't being taken over by outside commissioners. we have asked people to come because we need more help. from ministers, there were tears. hearing the harrowing account of the survivors has been the most humbling and moving experience of my whole life. the families that i've met have been through unimaginable pain. earlier, at the inquest, 60—year—old vincent chiejina is named and sheila smith, described as a truly beautiful person. lucy manning, bbc news, west london. labour has accused the government of flip—flopping and floundering over the issue of raising the pay of public sector workers. several cabinet ministers have hinted that they would like to see the 1% pay cap removed. but theresa may told mps that britain had to live within its means. the fierce exchanges in the commons come as new figures show productivity in the uk has fallen for the first time since 2015. here's our economics editor kamal ahmed. whatever your job, the income squeeze is on. wages are rising more slowly than inflation and our ability to create wealth, productivity, is struggling. when productivity fails to improve, the ability to increase pay also stutters. in the commons, the economy and what britain can afford was back centre stage. i had a letter last week from a teacher called david... jeremy corbyn on the attack over the public sector pay cap. so what we're doing by this pay cap, i say to the prime minister, is wrecklessly exploiting the goodwill of public servants like david. they need a pay rise. our policy on public sector pay has always recognised that we need to balance the need to be fair to public sector workers, to protectjobs in the public sector, and to be fair to those who pay for it. public services and how we pay for them depend to a large extent on the economy. if the economy is performing well, we pay more taxes, firms pay more taxes and the government has more money to spend. but today, on the economy, not good news. productivity, the amount of wealth we create for every hour worked, has gone down. this is britain's productivity problem. productivity fell by 0.5% in the first three months of the year and is now worse than before the financial crisis. in the productivity league table, the uk is ranked a pretty poor 26th in the world, behind competitors like america, france and germany. and here's a stark illustration of the problem. in the time it takes a british worker to produce £1 of economic value, a german worker produces £1.36. britain's productivity has stagnated for the last decade. it's been worse in the last decade than at any time in the last century. but it doesn't need to be that way. there are things that businesses can do, there are things that government can do. there are things that we as a country can do. whether that be investing in skills, investing in machines, addressing the way in which businesses grow and in which staff move from one business to another to achieve their potential. public sector pay, the living standards squeeze, lack of investment by firms, the productivity problem. a toxic mix. the challenge for all the players in the economy, public and private, how to work better and increase wealth for all? kamal ahmed, bbc news. the italian government has made the latest offer to treat the terminally ill baby charlie gard. but the foreign secretary, boris johnson, says that for legal reasons it is impossible for him to be transferred to the vatican's children's hospital for treatment. charlie gard's parents have already lost their legal battle, both here and in the european court, to keep him alive — against the advice of doctors at the great ormond street hospital. a disabled refugee who was beaten to death and set alight by his neighbour in bristol four years ago — was repeatedly failed by the police. that's the conclusion of the independent police complaints commission, who say officers from the avon and somerset force ignored bijan ebrahimi's pleas for help. and they said there was evidence that "racial bias" affected the officers' response. jon kay reports. fouryears on, and tonight the sisters of bijan ebrahimi have some more answers. they've been told their vulnerable younger brother was repeatedly failed by police in the years before he was murdered — treated as a nuisance, not as a victim. reading that report, it was devastating. they say the list of failings has shocked them. it was so hard to see bijan all these years been suffering, and his voice never listened to. he always thought that he's in a country that the police is there to protect people. don't you dare take pictures of me, all right... today's report says bijan didn't just fear for his life in the days before he was murdered by this neighbour, lee james. .. get out of my house. but that he'd called police repeatedly from a number of addresses over several years, asking for help. i've got an mob outside my door. but time and time again, he was ignored. what part of be quite do you not understand? shut up! today's report runs to hundreds of pages, and it says this whole case has laid bare what it calls the disrespect, the prejudice and even contempt with which some officers and staff treated bijan ebrahimi in the days before he was murdered here. last year, pc kevin duffy and community support officer andrew passmore were jailed after being convicted of misconduct in a public office. pcs leanne winter and helen harris were cleared by the jury, but were later sacked by a misconduct hearing. bijan‘s family have raised questions about racism within the force. there are some hallmarks of discrimination that could be construed as race hatred. there are overwhelming elements of evidence that indicate this was discrimination against a very vulnerable man. avon and somerset police say this case has already prompted major changes. we accept that we failed bijan ebrahimi at his time of greatest need, and throughout that time he was respectful and he had confidence and trust in us, the police, and we let him down, and for that, we are sorry. in this city, known for its tolerance, tonight many questions remain, and four years after the murder of bijan ebrahimi, there is still another major report from the council yet to come. jon kay, bbc news, bristol. knife crime is one of the greatest challenges police forces now face across the country. knives are now britain's number one murder weapon and increasingly both the victims and the perpetrators are children and teenagers. last year, nearly 32,500 knife crimes were committed in england and wales. that figure was up 14% on the previous year. our home affairs correspondent, june kelly, has been on police patrol in birmingham and met some of those working to end knife culture. a summer evening in birmingham and the force response teams from west midlands police are dealing with dozens of emergencies. proceed to a second stabbing... this time in kings norton. and i'm notjoking. oscar 30, that's over, heard. grandson has been stabbed. caller has had a call from her daughter stating the 15—year—old grandson has been stabbed. caller is hysterical. he's not at this location. the victim is a 15—year—old boy. he doesn't live in this road, he was found here. the teenager is helped into the ambulance by his mate. no sign of the attacker and no information from the victim. are you doing anything productive at that particular job? it's just we've got another one. single stab wound to the abdomen. bleeding a lot. and once again, there is no corporation from this second victim. the pressure not to be a grass. unfortunately, he didn't want to provide a statement or provide us an account or tell us where the incident had occurred. so there is very little we could actually do or investigate. but we can still record the matter as a crime. in the west midlands, just like the rest of the country, knife crime is on the rise. do you understand the reasons why you're being searched ? yes, because of weapons. lives lost, victims scarred and maimed. and more people found to be carrying blades. depzman was a rising rap star. the teenage grime artist from birmingham had fans all over the country. he was murdered weeks after his 18th birthday. a row over a girl spiralled into a fight and then his rival pulled a knife and plunged it into his heart. seven hours later, depzman, real namejoshua ribera, was dead. i sayjoshua, not depzman. not a grime mc. becausejoshua is my little boy. now his mum alison goes into schools and uses her son's name, fame and death to drive home the consequences of carrying knives. we're not showing these children's faces because they have been permanently excluded from mainstream schools. every single time his heart stopped, he fought back and fought back seven heart attacks. but on the morning of the 21st of september at 5:58am, my son gave up on life and he died. we were given unique access to this class, part of city of birmingham school which looks after excluded children. at the entrance there is a scanner to stop any weapons coming in. why do you think someone is going to carry a knife on the street as a weapon? to protect yourself from others. and today the pupils are also hearing from constable rob pedley. he's in different schools every week as part of a campaign by west midlands police to try to turn teenagers away from the knife culture. if you go to your kitchen drawer at home, take out one of the sharp knives, you are carrying the country's number one murder weapon. it is not the gun, it is the knife. staff here have enlisted rob and alison because every day they are battling to keep his children day they are battling to keep these children safe and out of trouble. while we cannot show their faces, we were able to record their words. they know about knives being used as initiation into gangs. usually you take a beating. when you take a beating, they only have to stab you in the arm. that is what my cousin did. nathan spent most of his teens in and out of young offender institutions. and has served jail terms for knife crime. he has tried to turn his life around and now, as well as being a rapper, he is also launching a charity. he knows why people carry knives. how are you going to break that cycle? that is very hard, isn't it? people who have been through things, people who have gone to prison, real people who have been in situations are the best people to help reform people and give people, tell people about their experiences and definitely workshops and help promote more awareness about these things. and showing, you know what i mean, looking at the consequences of why these things, what can happen. and as the mother of a murdered son, alison is calling for a different approach to stop so many ruined lives. looking at them as being scum of society is not working. we need to step right back to nine—year—olds, eight—year—olds, and guide them in a better direction. it is going to be a big old blue light, then. around the country, police are trying to crack down on the culprits. but the problem is escalating. and it will take a change of mindset and culture to halt the knife epidemic. june kelly, bbc news, birmingham. last month saudi arabia, the united arab emirates, bahrain and egypt cut all land, air and sea links with their gulf neighbour qatar, accusing it of supporting jihadi groups. now they say qatar has failed to grasp the gravity of the situation, and further measures will follow. but qatar's foreign minister has told the bbc they won't give in. frank gardner reports. in a cairo palace in the egyptian capital today a crisis meeting to discuss the issue of qatar. foreign ministers from four arab countries have accused qatar of supporting terrorism which it denies. they've cut ties and slapped sanctions on qatar, to no avail. we can not have a country like qatar that is an ally, militarily and in the gcc and in the arab league, and that hosts an air base from which planes take off to fight isis and daesh — i mean, al-qaeda and at the same time it turns a blind eye to terrifying who operate openly in qatar. the gulf state of qatar stands accused of using its vast wealth from gas to back islamist movements all over the middle east and of allowing extremist preachers to broadcast on al—jazerra. its arab opponents have insisted that tv network be shut down, one of 13 demands that include closing a turkish military base on its soil and cutting back ties with iran. qatar has refused. on the syrian civil war, qatar admitted today it had made mistakes in the past over which rebel groups to support. but so too says qatar have other countries in the region. when i met qatar's foreign minister in london today he insisted the terrorism accusation was just an excuse to rob qatar of an independent foreign policy. qatar has never and will never support any terrorist movement or will never allow terrorism funds to be raised from qatar or to be channelled through qatar and will take whatever measures it takes in order to get rid of them. qatar matters to britain. it has huge investments in the uk economy. these include britain's tallest building, the london shard; a 50% stake in the canary wharf development; all of the luxury of the supermarket group sainsbury‘s. their uk investments total around £40 billion. then there's the us. qatar hosts the pentagon's largest air base in the middle east, a vital part of the us—led war on so—called islamic state. washington and kuwait have tried in vain to mediate in this dispute. now it looks set to escalate, to the dismay of qatar's western allies. frank gardner, bbc news. volvo has become the first carmaker to announce that it will no longer make petrol or diesel—only cars. from 2019, all their new models will be electric or hybrids. our transport correspondent richard westcott considers what it all means for the future of cars and how we drive them voiceover: he drives up in a 1908 model t... the shapes have changed a bit over the years, and thank goodness, when it comes to the brown allegro, but all these cars have one thing in common — an internal combustion engine, burning petrol or diesel. we've relied on it for 100 years, but is that about to change? volvo cars is taking a bold step forward, heralding the end of an era for the pure internal combustion engine... from 2019, volvo says all its new models will be at least partly electric. ambitious plans, but experts say it won't be quick. diesel and petrol will have a long life in them yet. a lot of people choose to adopt hybrids before they go all electric. during that time, bateries will improve, which will increase during that time, batteries will improve, which will increase the range of miles you can do, and prices will drop, which will also make them more tenable for people to buy. so it's going to be quite a while yet before we see all electric cars, as every car on the road. in fact, sales of alternative engines remain small. injune last year, more than 8,300 electric and hybrid vehicles were registered in the uk. that increased to nearly 11,000 this year, but it's still dwarfed by the 250,000 petrols and diesels people bought. this street sums up one of the big reasons that plug—in cars haven't sold in any great numbers. many of us live in houses like this, we don't have garages, we live in flats. you often can't even park near your house, so how are you supposed to charge your electric car? then there's the problem of topping up mid—journey. certainly some of the country is better than others. newcastle and the north—east has quite a lot of charging infrastructure, wales is very poor, but to get from where we are to where we need to be, lots of different parties are going to have to come forward and put in charging points. be that workplaces, we'll need to see businesses putting in for their staff. supermarkets, anyone who has a public car park available. our cities are plagued by pollution, with diesel engines one of the main culprits. electric cars are quieter and cleaner, are getting cheaper with a better range, but it will still be some years before the internal combustion engine drives off for good. richard westcott, bbc news. it's been a good day for the brits at wimbledon with victories forjohanna konta and andy murray. joe wilson was watching the day's action where the players weren't just battling soaring temperatures. they also had to contend with flying ants. public information didn't mention flying ants. well, you can't predict everything. but the heat and the british success ws forecast. prepare to be dazzled. two british players — woman and man, contender and title defender, both on centre. here was a match of true intensity. johanna konta at the top of the screen, croatia's donna vekic on the other side of the net, and the ball flying. konta took the first set in a tie—break but when vekic won the second, the match altered course alarmingly. flying ants everywhere today. vekic dealt with that opponent. but the tennis was relentless, this match stretched on past three hours. look at this point in the 17th game of the third set. someone had to win, and konta broke decisively. ten games to eight in the final set. how it feels to give everything and win, and to give everything and lose. well, i think everybody at wimbledon needed a bit of a relax after that. a change of mood and tempo. nice. but quickly back to centre court for andy murray's solo. well, it takes two to make an entertaining match, and when dustin brown is your opponent there will be fun. he is a great improviser. but this was a day when the towels were filled with ice and andy murray's mind was sharp. pretty soon he worked out he could follow brown's tune and come up with his own versions. even better. just three sets, just one hour 36 minutes for murray to win, in a nicely natured centre court excursion. now all we needed was a quick update on that troublesome hip. yeah, it's ok.