Hello and welcome. The Us Democratic president ial 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 its 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 and delays proving particularly contentious. Reports suggest mr trump had other matters on aid aside from aid to ukraine. The wall street journal has claimed mr trump repeatedly urged mr vladimir the la nky repeatedly urged mr vladimir the lanky does make zelensky to investigate the son ofjoe biden. He worked for a gas company in the ukraine while joe biden worked for a gas company in the ukraine Whilejoe Biden was serving as vice president. Joe biden threaten to withhold aid and less it withdrew a prosecutor investigating his son because my company. Joe biden is currently the front runner for the president ial nomination, and he limited suggestions that President Trump may have tried to have the investigation reopened. He should does make you should be looking at trump. Job is doing this because he knows i will beat him, his abusing 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. Conversation, President Trump is branding the affair fake newslj dont want to talk about any conversation other than to say other than to say a great conversation, totally appropriate conversation, totally appropriate conversation, couldnt have been better. And keep asking questions and build it up as big as possible so and build it up as big as possible so you and build it up as big as possible so you can and build it up as big as possible so you can have a bigger downfall. Complicating matters is the fact that mr trump is my 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 stop 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 road. And President Trump and Volodymyr Zele ns ky and President Trump and Volodymyr Zelensky are due to meet on the sidelines of the United NationsGeneral Assembly meeting in new york. This complex affair may not be over soon. 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 bbcs Frank Gardner is in saudi arabia and sent this report. Punctured, bombed, and blasted, the graphic aftermath of last weekends missile and drone attack on saudi oilfacilities. The pinpoint attack, quickly blamed by the us on iran, temporarily knocked out half saudi arabias Oil Processing capacity. Iran denies responsibility, but today, this revolutionary guards 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 Irans Central Bank and its sovereign wealth fund. Its 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, weve 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 saudis called for restraint, and washingtons measures appeared defensive. But with tensions high, it may not take much to change the president s mind. Frank gardner, bbc news, riyadh. The holiday operator and one of the worlds oldest tour company, thomas cook appears close to collapse, after the failure of a rescue plan. The company have approached the British Government for financial help. It needs 250 million of extra funds to avoid collapse, and is preparing for talks with key players later on sunday morning in a final attempt to reach a rescue deal. Around 600,000 holidaymakers around the world could be stranded if the company collapses. After fridays climate protests around the world, the activist who inspired them, greta thunberg, has attended a youth summit on Climate Change in new york. The meeting, hosted by the United Nations, discussed what actions should be taken to tackle Climate Change. Thunberg praised herfellow climate activists, ahead of her scheduled address to the un General Assembly on monday. Yesterday, 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 un secretary general Antonio Guterres has also been at the youth summit, and said hes been listening to their concerns. First of all, it is an enormous pleasure to be a keynote listener, where we can listen to meaningful things like the words we heard. And indeed, i have been more times keynote speaker than keynote listener, but that is one of the problems of world leaders. Is that they talk too much and they listen too little. Applause. And it is listening, that we learn. And is given the possibility for all those that represent todays world to speak and to have their voices be part of the Decision Making processes, that we can move forward. Youre watching bbc news. Stay with us here on bbc news. Still to come well have more on those talks due to take place later to try to save one of the worlds oldest holiday companies, thomas cook. 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 watsons role will now be reviewed rather than abolished. But labours divisions over brexit also surfaced on the first day of a conference which had been designed to demonstrate unity. 0ur Political Correspondent iain watson has been following the days events in brighton. The day began in relative calm after a stormy night. Labours 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 deputy leaders 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 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, 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. Labours 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 wouldnt 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 mays. 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 corbyns 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. 0ur 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. Lets look at some other stories in brief. Chicago police have arrested a 22 year old man after a car was driven into a Shopping Mall in the suburb of schaumburg in the dramatic video posted online shortly after the incident, shoppers can be seen fleeing as the car ploughs through the shopping centre. Three people were taken to the hospital for non life threatening injuries. Why the car crashed into the mall in the first place still has not been revealed. Pop star taylor swift has cancelled a gig at the melbourne cup horseracing event in australia after she was accused by Rights Groups of endorsing animal abuse by performing there. 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. Mexicos popocatepetl volcano has been caught on camera erupting in the early hours of saturday morning. A plume of ash and gas flew over 1,000 metres into the sky above the snow capped crater. This is the moment a meteor lit up the sky in australia. Seen over the states of tasmania and victoria, the meteor produced a vivid light. But experts say it may have been as small as a tennis ball. A sit in is being held in hong kong to mark two months since an attack by pro beijing vigilantes on protestors and commuters left 45 people in hospital. Earlier, police fired tear gas on Anti Government protestors when a rally in the district of tuen mun turned violent. Thousands marched from tuen mun park to the government offices there in a demonstration that had been approved by police. The march was initially called in response to pro beijing protestors tearing down colourful Anti Government posters, known as lennon walls, afterjohn lennon. Its the 16th consecutive weekend of protests in hong kong. This is the moment that protestors threw molotov cocktails at riot police. You can see the police fired tear gas in attempt to disperse them. Here are the riot police arresting protestors. The police have previously been criticised for their heavy handed approach. And heres a barricade that was set on fire by protestors earlier. 0ur correspondent Stephen Mcdonell is in hong kong. Todays rally was cleared that is, they had official permission to march. And yet, again, its turned into one of these street battles. This week, a Senior Police officer told us that they are stretched to the absolute limit. They say theyre handling this crisis, but if there was to be a greater escalation the only way they could deal with that would be to eat into other areas of their police work. As the Police Detained protesters, theres a lot of attention from the local media. This is a speciality case, given the Amnesty International report that was released a few days ago, accusing the police of excessive force. Now, this is something the officers here deny. But, given that, when they apprehend people, the media are on them. After being cleared out of other areas, protesters have come here to yuen long to mark two months since triad connected gangs ambushed activists and, using home made weapons, bashed them in the train station. Now theyve accused some Police Officers of colluding with those gangs. Thereve also accused some pro beijing politicians of being linked to the underworld. This is why they want an independent enquiry, which is one of their key demands. And you can hear them calling out 110w five demands, not one less. This is bbc news. The headlines the democratic president ial 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 weeks attacks on Oil Installations is complete. He again pointed the finger at iran. More now on those 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 worlds oldest holiday companies. Lenders want the company to find £200 million to secure its future and its approached the British Government for a bailout. Around 600,000 holidaymakers around the world could be stranded if the company collapses. With me is the bbcs simonjones. First of all, can you tell us where rescue plans are at . These are being described as crunch talks. They are due to get under way in the city of london at around nine oclock this morning. That is going to bring together a major backer, a chinese firm, and also other creditors stop the key issue is finding that extra £200 Million Investment that is needed and where, potentially, that may come from. It seems all parties are not keen to be the ones to put their hands in their pockets. It is thought this extra money will be need of what is likely to be a difficult winter period. That may be down partly to brexit, with britain due to leave the eu at the end of 0ctober, so people may be reluctant to commit to booking holidays, waiting to see what happens there, the financial problems are also blamed on what has happened in recent times, particularly last summer recent times, particularly last summer with a heatwave across much of europe, people decided to simply enjoy the weather at home and did not go on holiday. And also trouble in areas like turkey, which have traditionally been popular tourist destinations for travellers using thomas cook. It could come to an end. These are perhaps the most crucial talks in that period. What is the advice for thomas cook customers if they are already travelling at the moment . particularly concerning time. We think there are around 150,000 british travellers abroad, and more from other european countries. Particularly regarding british holiday make us, if they are currently on holiday the advice is to enjoy your holiday as best you can, because if the firm does go under there will be a plan put in place to ensure that everyone can get home, because those holidays, a package holiday, are covered by aduu package holiday, are covered by adult protection. Everybody pays a little bit extra on those holidays for this cover. It means that holidays can continue. The British Government will step in and fly people home when necessary. So what if you have booked your holiday but you havent travelled yet . That is going to be a worrying time. At the moment the advice is to sit tight and see what happens with thomas cook over the coming hours and potentially coming days, because they could be the rescue plan agreed, in which case the holidays are going to go ahead as planned. But if the firm does go under and you havent travelled yet, you will be able to get a refund via this scheme. If you havent travelled yet what they wont do is step in and give you an alternative holiday. So you may get the money back, you will get the money back, but theyre not going to give you another holiday. You will have to find lies yourself toa you will have to find lies yourself to a new destination and potentially find new hotels flights. If you have just booked lights are not a holiday, you should get the money back. You can claim either via your credit or debit card. If you have holidays and have booked the ticket, you want to know it is going to go ahead. At the moment that uncertainty hangs over a lot of holidays. Should the worst happen and thomas cook fails, what are the plans to repatriate people . M and thomas cook fails, what are the plans to repatriate people . It would end up being the biggest repatriation of british citizens since world war ii, around 150,000 people would need to be brought back. That would be co ordinated by the government and the Civil Aviation authority. They would look to use other allies to put on flies at similar times to make sure people can get back to the uk. But already we are hearing the potential problems. We have heard from some holidaymakers out in tunisia who we re holidaymakers out in tunisia who were due to leave shortly and they we re were due to leave shortly and they were told, as they were trying to check out of the hotel, the owners of the hotel came they had not been paid by thomas cook and they were asked to stump up £1000, £2000 simply to leave. A lot of them refuse to do that. There was a stand off and they told us they were stuck in the hotel for hours. The gates were locked and they felt like they had been taken hostage. Eventually they were able to leave when it appears the hotel was reassured, either by thomas cook or atoll that the hotel would get the money of the worst happened. What are the chances of the company being saved . Spoke to one industry expert. He reckoned it was around 5050. The crucial talks due to take place at around nine oclock this morning 5050. If around nine oclock this morning 50 50. If ultimately they cannot find the £200 million then the firm could go under within a matter of days or hours really. Simon jones taking us through all that. Thank you very much. Every schoolchild should get to spend a night under the stars in a National Park or area of outstanding beauty, thats 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. Englands iconic National Parks, facing serious problems, like 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 dont. Todays report calls for a new National Parks body and a ranger service. A visit scheme for every child in the country and easier access for people from all backgrounds. I think i hear all the time that i am scared to go up there, i dont 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 englands 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. It was the largest airborne operation of the second world war. The battle of arnhem was the failed bid to recapture a key bridge held by the germans in an attempt to bring an early end to the war. More than 1,500 British Service men were killed. 75 years on theyve 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 wasnt 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 couldnt believe it. There may be fewer of them with each passing year, but the dutch who they came to liberate, say theyll never be forgotten. Jonathan beale, bbc news, arnhem. You can reach me on twitter, im 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 its a more unsettled picture. Rain or showers at times through the day on sunday and things will start to feel a little bit cooler than they have done recently, too. The reason for that is that weve got low pressure out towards the north west of the uk. And thats going to be driving in some weather fronts through the day. And weve 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 whether 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, thats 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 them up 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 washout on tuesday. But its 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 showers symbols on the outlook chart for the Capital Cities of 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. Five demands, not one less. This is bbc news. The headlines the democratic president ial 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 weeks 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 Two saw around 35,000 allied Soldiers Land behind enemy lines