welcome to bbc news, i'm reged ahmad. our top stories: the row between donald trump and presidential hopefuljoe biden deepens, after reports the president pressured ukraine to investigate him and his son. and saudi arabia warns iran it will respond with "necessary measures" to last week's attacks on its oil installations. hello and welcome. the us democratic presidential contender and frontrunner, joe biden, has accused donald trump

of an overwhelming abuse of power. it follows reports he tried to pressure ukraine into opening a corruption investigation against mr biden and his son. leading democrats say if true, it could be grounds for impeachment. president trump says it's another "witch hunt". our north america correspondent david willis reports. leaders talk to other leaders all the time of course, but one particular phone conversation injuly is proving particularly contentious. the lord is a lenski, a former comedian, had just won ukraine's presidential election. his country relies on the us are millions of dollars in aid, but reports suggest mrtrump had dollars in aid, but reports suggest mr trump had other matters on his mind that they are —— volodymyr zelensky. the wall streetjournal has claimed mr trump repeatedly urged

mr zelensky to investigate the son ofjoe biden, hunter biden. he worked for a gas company in the ukraine whilejoe biden was serving as us vice president. joe biden threatened to withhold aid unless it withdrew a public prosecutor. joe biden is currently the frontrunner for the presidential nomination, and he livid at suggestions that president trump may have tried to have the investigation reopened. you should be looking at trump. trump's doing this because he knows i will beat him like a drum, and he's using the abuse of power and every element of the presidency to do something to smear me. although he is refusing to be drawn on the contents of the conversation, president trump is branding the affair "fake news". i don't want to talk about any conversation other than to say — other than to say, great conversation, totally appropriate conversation, couldn't have been better.

and keep asking questions and build it up as big as possible so you can have a bigger downfall. complicating matters is the fact that mr trump's telephone conversation appears to be the subject of a whistleblower complaint from a member of the intelligence community. a complaint allegedly involving a promise president trump made during the course of the conversation, was reviewed and deemed "serious", but was subsequently blocked from being passed on to congress. democrats believe that was the result of an intervention by the white house. the acting director of the us national intelligence, joseph maguire, is due to testify before congress next week, and he is bound to be pressed on this row. and president trump and volodymyr zelensky are due to meet on the sidelines of the united nations general assembly meeting in new york. this complex affair may not be over soon. david willis, bbc news, washington. tensions in the gulf are rising once more, in the aftermath of the bombing of a saudi oilfacility.

the saudi foreign minister has accused iran of being responsible for the attack, saying his country will respond with "necessary measures". and the united states, an ally of riyadh, has announced it will send troops there. the bbc‘s frank gardner is in saudi arabia and sent this report. punctured, bombed, and blasted, the graphic aftermath of last weekend's missile and drone attack on saudi oilfacilities. the pinpoint attack, quickly blamed by the us on iran, temporarily knocked out half saudi arabia's oil processing capacity. iran denies responsibility, but today, this revolutionary guard's commander issued a fiery warning against any possible retaliation. translation: a limited aggression will not remain limited. we will punish you. we will follow you. we have shown we will not rest until the aggressor is destroyed. the us has held off military action,

instead, slapping sanctions on iran's central bank and its sovereign wealth fund. it's also sending additional troops to defend saudi arabia. at a press conference today in the saudi capital, the minister of state welcomed this move. in addition to the us, we've also had very strong military cooperations from a number of other allies, in particular the united kingdom, and i think that the challenges we are facing now call for enhancing security cooperation between the kingdom of saudi arabia and its allies and partners. the saudi government has welcomed the deployment of additional us troops to bolster its air defences. now is the time, said the minister, for his country to work more closely with the us and britain. iran, he said, was to blame for all the recent missile attacks on his country. only days ago, president trump said the us was "locked and loaded", but the saudi's called for restraint, and washington's measures appeared defensive.

but with tensions high, it may not take much to change the president's mind. frank gardner, bbc news, riyadh. you are watching bbc news. the labour leaderjeremy corbyn has prevented an attempt by left—wing activists to oust tom watson as his deputy. mr watson likened the ploy to remove him as a "sectarian attack". the party leadership says mr watson's role will now be reviewed rather than abolished. but labour's divisions over brexit also surfaced on the first day of a conference which had been designed to demonstrate unity. our political correspondent iain watson has been following the day's events in brighton. the day began in relative calm after a stormy night. labour's deputy leader had almost been swept from office by left—wingers who saw him as disloyal — butjeremy corbyn was not in on the plan, so to avoid damaging pre—election

row he had to stop some of his usual supporters from abolishing the post. we are going to consult on the future of diversifying the position to reflect the diversity of our society. tom watson is the deputy leader of the party and i enjoy working with him. tom watson leads a group of around 100 moderate mps and arriving at brighton station this afternoon he accused some on the left of derailing any hope of unity. i am disappointed, because i hoped we could unite this week and i am still hoping that and that is what i am hoping to do. it is fair to say that the atmosphere has been heating up inside the labour party. make no mistake about it, if tom watson had been forced out of his position as deputy leader we could have seen a pre—election crisis in the main party of opposition and potentially even a split. this row has almost overshadowed the arguments about brexit. almost.

labour's ruling national executive drew up its preferred brexit plan today. if passed by the party conference, it would mean that a labour government would negotiate a new brexit deal in its first three months. they would then hold a referendum on this deal within six months but with the option to remain on the ballot paper. but crucially, this would mean the party wouldn't decide whether to back leave or remain until after the general election. what corbyn is effectively saying is, i will speak for everyone, i will negotiate a deal much better than theresa may's. we will stop the disaster of a no dealfrom borisjohnson and we will take that back, let the people decide. the trouble is that these people have already made up their mind without seeing any leave deal. even members ofjeremy corbyn‘s own top team say the party should campaign to remain in the forthcoming general election.

what do you think of the of labour campaigning for a labour leave version of brexit? we must make sure that we lead the campaign to remain. but if the party does not do this, tonight the local labour mp claimed that labour would be facing an electoral disaster. our place is in europe and in the world, and if labour does not stand for that, we will have the same results that happened in the european elections. we will be third or fourth. an encouraging end for a day that had not entirely gone to plan. jeremy corbyn wants to keep his fire trained on the enemy outside rather than inside his party. there's been a day of protests and sporadic clashes in paris as a climate change demonstration was infiltrated by activists associated with anarchist groups and by yellow vest supporters.

french police responded with tear gas as the radical groups broke shop windows, set up barricades and set fire to bins. more than 100 people were arrested. the bbc‘s tim allman reports. from the start there was a big police presence for what was meant to be a peaceful demonstration. and to begin with it was, with an almost carnival—like atmosphere. everyone united in their desire to save the environment. translation: we can't keep on going like this. this is an emergency. we have to take big measures in terms of the budget, in terms of the general organisation of the state's spending, where the environment is to take priority over everything else. but as the day wore on, the situation became more violent. chanting. anarchist groups accused of exploiting the climate protests to make trouble.

soon police were firing tear gas as demonstrators damaged shop windows and started fires. 0ne officer appeared to spray the lens of a camera crew as they were trying to film an arrest. 0rganisers eventually told the protesters to stay safe and go home. thousands of miles away, on the other side of the atlantic, the action against climate change took a different form. a meeting at the united nations, among those invited, greta thunberg, the swedish schoolgirl who has become a symbol of environmental activism. millions of people across the globe marched and demanded real climate action, especially young people. we showed that we are united and that we young people are unstoppable.

the sentiment shared all around the world. here a demonstration in indonesia. climate change is a global problem and it will need a global solution. tim allman, bbc news. this is bbc news. the headlines: the democratic presidential frontrunner, joe biden, has accused donald trump of an overwhelming abuse of power over reports that he tried to put pressure on ukraine to launch an investigation against him and his son. the saudi foreign minister says suitable action will be taken once the investigation into last week's attacks on oil installations is complete. he again pointed the finger at iran. talks to be held in a few hours‘ time in a last—ditch effort to try to save thomas cook, the uk tour operator and one of the world's oldest holiday companies. a previous rescue plan failed. lenders want the company to find £200 million to secure its future

and it's approached the british government for a bailout. around 600,000 holidaymakers around the world could be stranded if the company collapses. 0ur reporter simonjones is following the story and says the talks are being described as the most important in the country's 178 year history. they are due to get under way in the city of london at nine o'clock this morning. that, they are looking for a major backer, a chinese firm, and some other creditors. the duties finding that £200 million investment, potentially where that might come from, it seems all parties are not keen to put their hands in their own pockets. it is thought this extra money is going to be needed for what is likely to be a difficult winter period. that may be due partly to brexit, with britain due partly to brexit, with britain

due to leave the eu at the end of 0ctober. people may be reluctant to commit to holidays, waiting to see what happens there. the financial problems are also blamed on what has happened in recent times, particularly last summer with a heatwave across much of europe, people decided simply to enjoy the weather at home and didn't go on holiday, also trouble in areas like turkey, which have traditionally been popular tourist destinations for thomas cook travellers. people haven't been going as much there. so really, we' re haven't been going as much there. so really, we're talking a 178 year history, that could come to an end. perhaps these are the most crucial talks in that period. what is the advice for thomas cook customers if they are already travelling at the moment? a particularly concerning time. we think there are probably 100,000 british holidaymakers abroad. if they are currently on holiday, the advice is simply try and enjoy your holiday as best you can, because if the firm does go under there will be a plan in place

to make sure everyone can get home. those are covered by the ato l protection, it pays a little bit extra and that means holidays can continue in the british government will step in and lay people home where necessary. what if you have booked your holiday, but you haven't travelled yet? that is going to be a worrying time because at the moment the advice simply is to sit tight and see what happens with thomas cook over the coming hours and potentially coming days, because there could be the rescue plan agreed, in which case holidays are going to go ahead as planned, but if the firm does go under, and you haven't travelled yet, you will be able to get a refund via this seminar scheme. but if you haven't travelled yet, what they won't do is give you an alternative holiday. you will get the money back, but they won't give you another holiday. you are going to have defined slides yourself to a new destination, potentially finding new hotels. does

make you are going to have to find yourself. you can claim either via yourself. you can claim either via your credit or debit card or via your credit or debit card or via your holiday insurance. but once again, if you have holiday plans, if you are looking forward to going away and you have booked the tickets, you are going to want to know if it goes ahead and that uncertainty hangs around a lot of these holidays. what other plans repatriate people? it would be the biggest since world war ii, hundred 50,000 people would need to be brought back and that would be co—ordinated by the government and civil aviation authorities. they would likely use other airlines to put off lights at similar times to make sure people can get back to the uk but already we are hearing of potential problems. some holidaymakers out in tunisia, due to leave shortly and they were told, as they were trying

to check out of the hotel, the owners claiming they had not been paid by thomas cook and they were asked to pay £1000 paid by thomas cook and they were asked to pay e1000 and some reviews. some stuck in the hotels for two or three hours. some felt they had been taken hostage three hours. some felt they had been ta ken hostage but three hours. some felt they had been taken hostage but eventually they we re taken hostage but eventually they were let go once they were reassured by thomas cook or atoll. what are the chances of the company being saved? it the chances of the company being saved ? it is the chances of the company being saved? it is been thought that this isa saved? it is been thought that this is a possibility that things go wrong. a travel expert put it at 50-50 wrong. a travel expert put it at 50—50 about whether the company would survive. it depends on the crucial meeting in the morning with creditors, whether they are prepared to put in more money to the firm to try and save it otherwise we will see one of the biggest names going under. "every schoolchild should get to spend a night under the stars

in a national park or area of outstanding beauty" — that's according to a government report which also says more money needs to be spent on national parks and in creating new ones. angus crawford has more. extraordinary beauty in a fragile landscape. england's iconic national parks, facing serious problems, lack of affordable housing, poor transport links, environmental decay. people who visit them may love them, but not enough get the chance. people in our country come and love places like this wonderful spot in the peak district we are in today. millions of people enjoy it, but millions don't. today's report calls for a new national parks body and a ranger service. a visit scheme for every child in the country i think i hear all the time that i am scared to go up there, i don't know what to do

or maybe it is not for me, but ijust want to encourage people. it is for everybody. the authors make a simple equation, preserving natural beauty fosters national health and well—being. three hours south and just 30 miles from london, the chilterns. proposed as england's next national park. for some, that could be a mixed blessing. i think try and conserve the best of what the chilterns have to offer. but at the same time, you have got to move forward, so therefore there has to be some enlightened attitudes towards new developments, towards progress. this report has a simple message. these landscapes should be for everyone and more needs to be done to both promote and protect them. action now to preserve our most beautiful places for generations to come. angus crawford, bbc news.

new zealand have reminded everyone why they‘ re champions, after a clinical performance against south africa in their opening match at the rugby world cup. katie gornall was watching in yokohama. well, many believe there could have been an upset here, given south africa's form coming into this tournament. but new zealand were ruthless. they showed why they are the favourites to lift this trophy for the third time in a row. they were put under real pressure from south africa, though, in the first 20 minutes, south africa getting the first points on the board for a pollard penalty. but new zealand hit back almost immediately with two quick tries. the first from george bridge, the second from scott barrett. it was a good night for the barrett family, with beauden barrett, his brother, pulling the strings from fullback. and south africa were down by 1a points at half—time. they did improve in the second half. they responded with a quick try of their own, a real poachers try from pieter—steph du toit. but new zealand just managed to keep them at arms length

and they won by 10 points in the end, to round off a morale boosting victory from them. they've never lost a world cup pool match. that record continues. but south africa, if they can improve, the final will be held here in yokohama, so there is a chance that these two teams could meet again before too long. in the day's first game, 2015 finalists australia, made a terrible start against fiji in their opening pool match, but scored four second—half tries as they fought back to win. 0ur reporter tulsen tollett was in saporro. well, it was a full house here in the saporro dome for the first of the two contests here this weekend. in the end, it was australia who won against fiji by 39—21. but if you had watched the first 15 minutes or so you would have said, hey, what's going on here? tuisova and radradra, the two wingers for fiji, were really making inroads. fiji were ahead at halftime, they went further ahead just after the interval. but then will genia came into the pitch, around ten or 15 minutes

into the second half, the wallabies veteran, the scrum half who came off the bench, change the complexion of the game. got the line—outs working, he got them moving forward, and latu, the hooker who picked up man of the match, scored two of those tries. in the end, it was a bonus—point for the wallabies. it maybe shouldn't have been. it was a little but harsh on fiji. now, in this pool d in this contest they got to the front in the second half. they stayed there. wales are also in this pool as well. so that's going to be fiji's final game. so it's all to play for still for them. they can make it through to the quarter—finals. they've only been to that stage twice in the past. for the wallabies, theyjust peak around world cup time and they peaked in the second half of this time and picked up a much—needed victory. and finally, in the day's third game, france held off a second—half comeback by argentina to win a gripping world cup match in tokyo, winning by 23 points to 21. and there are three more matches today including the first appearances of ireland, scotland and england — there's full commentary of all the games on bbc radio 5 live and five live sports extra,

starting at around 6am this morning with commentary on italy against namibia the pop singer taylor swift has cancelled her performance at the melbourne cup horse racing event in australia. it comes after she was criticised by animal rights groups, who accused her of endorsing animal abuse by agreeing to perform at the event. six horses have died at the cup since 2013, including one horse which was put down on the course last year after fracturing its shoulder. it was the largest airborne operation of the second world war. the battle of arhnem was the failed bid to recapture bridges held by the germans in an attempt to bring an early end to the war. more than 1500 british service men were killed. 75 years on they've been remembering 0peration market garden

and those who lost their lives. jonathan beale has more. sandy kaufman was preparing to jump into battle 75 years ago. now aged 97 he is one of the last of the surviving arnhem veterans leaping into the skies again. in 19114, he was taken prisoner soon after he landed, but today he was being welcomed by applause, rather than enemy fire. does it bring back memories? not really, no. laughter. british and nato troops joined in the drop to remember the bold plan to capture a series of bridges behind german lines. still, just a fraction of the allied troops that took part in what was the largest airborne assault in history. arnhem is the story of heroic failure. the british never managed to take the bridge. 1,500 were killed and thousands ta ken prisoner. this will probably be one of the last big events witnessed by the ever dwindling band

of veterans who landed here 75 years ago. but those they came to liberate say they will never forget the sacrifices they made. 75 years later and we are here with our children, so it is important that they know, where we remember the war and everyone who fought for us, for ourfreedom. i think it is very important. it should be remembered for many, many years. that is why we are here. it wasn't just locals, but also relatives and royalty who came to honour their bravery. along with a few surviving veterans likejothefferies, who still comes to remember the friends he lost. so many men wiped out. i couldn't believe it. there may be fewer of them with each passing year, but the dutch who they came to liberate, say they'll never be forgotten. jonathan beale, bbc news, arnhem.

you can reach me on twitter, i'm @regedahmadbbc. now a look at the weather with sarah keith lucas. hello there. while saturday brought us another warm, dry september day across much of the uk, things are now changing from sunday and through the course of this coming week it's a more unsettled picture. rain or showers at times through the day on sunday and things will start to feel a bit cooler than they have done recently, too. and the reason for that is that we've got low pressure out towards the north—west of the uk. and that's going to be driving in some weather fronts through the day. and we've got further low pressure systems waiting out in the wings for later on in the week. so we start off sunday morning with some heavy showers, particularly across south—west england, the midlands, wales, northern ireland, too. some thunderstorms likely with some of those showers. they drift their way northwards and eastwards across the uk, followed by another band of rain. some drier and brighter weather working in from the south—west in the day.

so a bit of sunshine around. and i think northern and eastern scotland probably holding onto the sunshine for a good part of the day. 18—23 degrees, so cooler than it has been, but still reasonably warm for some eastern areas where you do see the sunshine at times. now that showery rain should start to clear away towards the north and the north—east as we move through sunday night and into the early hours of monday morning. there could be some mist and fog patches around first thing monday. and it will be a slightly resonate sunday night compared to this current night. but still frost free around 11—13 degrees. now heading on into monday, and this next area of low pressure moving in, that's associated with the remnants of ex—hurricane humberto, so it will bring some wet and some windy weather eventually to the uk, but nothing unseasonable here. in fact, much of monday looks dry and fine with some sunshine, still a bit cloudy and damp across the north of scotland. late in the day that is where we see the wind speaking up in the rain arriving across south—western england and wales and northern ireland, too. central and eastern england should keep the sunshine through much

of monday, 20 degrees also here. typically the high teens for most of us. certainly cooler than it has been recently. more blue on the map for tuesday. more rain. some of it could be quite and thundery, too. also still quite breezy, especially towards the south. but some sunny spells in between the showers, so not a complete washout on tuesday. but it's certainly feeling cooler than it has done recently, with most of us seeing temperatures at 17—18 degrees also on tuesday. and then with low pressure not far away as we look through the rest of the week, plenty of shower symbols on the outlook chart for the capital cities over the next five days or so. showers around, particularly across parts of scotland, and northern ireland, too. some sunnier spells for the south and east, but an unsettled story for much of the week ahead. bye— bye.

this is bbc news, the headlines: the democratic presidential frontrunner, joe biden, has accused donald trump of an overwhelming abuse of power. it follows reports that the president tried to pressure ukraine to investigate mr biden and his son. mr trump insists his talks with foreign leaders were "always appropriate". saudi arabia has vowed to take appropriate action once the investigation into last week's attack on its oil installations is complete. the saudi foreign minister has insisted iranian weapons were used, and has rejected the claim by houthi rebels in yemen that they carried out the attack. and commemorations have been held to mark the 75th anniversary of the largest airborne assault in history. the battle of arnhem in world war ii saw around 35,000 allied soldiers land behind enemy lines. it was a failed bid to recapture a key bridge held by the germans.