peter saull, bbc news. oil plants in saudi arabia were a reckless attempt to damage regional security and disrupt global oil supplies. it comes as iran dismisses claims by the us secretary of state, mike pompeo, that it was responsible. houthi rebels in neighbouring yemen have said they carried them out — in revenge for saudi arabia‘s bombing campaign against them. the attacks have badly hit the saudi‘s oil production capacity and led to the a selling off of shares in oil companies on the stock exchange there this morning. nina nanji reports. an increasingly bitter war of words between iran and the united states over who is to blame for the attacks on the heart of saudi arabia‘s economy. the saudis say half of their oil production has been knocked out after drone strikes on two oilfacilities. houthi rebels in yemen say they were behind the attacks. but the us secretary of state dismissed this, saying there was no evidence the drones came from yemen. in a tweet, he said that "tehran is behind nearly 100 atta

peter saull, bbc news.retary of state, mike pompeo, that it was responsible for two drone attacks on major oil plants in saudi arabia. houthi rebels in neighbouring yemen had said they carried them out in revenge for saudi arabia's bombing campaign against them. the attacks have badly hit the saudi's oil production capacity and led to the a selling off of shares in oil companies on the stock exchange there this morning. well let's go live now to washington dc. where we can speak to professor sara vakhshouri who lectures at lecturer at the institute of world politics and is an energy consultant. thank you for speaking to us here on bbc news. firstly, tell us more about the significance of these two targets ? about the significance of these two targets? well, saudi arabia is one of the largest producers and exporters of crude oil and one of the only countries with the spare capacity for this event of an interruption of supply. the target was the heart of saudi arabia's production, where it is the biggest crud

peter saull, bbc news.condemned yesterday's drone attacks on two of saudi arabia's most important oil processing plants as a "reckless attempt to damage regional security and disrupt global oil supplies." the houthis — the rebel group the saudis have been fighing in yemen — say they carried out the bombings. but the us secretary of state, mike pompeo, has blamed the houthis' backers, iran — a claim angrily rejected by officials in tehran. nina nanji reports. an increasingly bitter war of words between iran and the united states over who is to blame for the attacks on the heart of saudi arabia's economy. the saudis say half of their oil production has been knocked out after drone strikes on two oilfacilities. houthi rebels in yemen say they were behind the attacks. but the us secretary of state dismissed this, saying there was no evidence the drones came from yemen. in a tweet, he said that "tehran is behind nearly 100 attacks on saudi arabia, while iran's president rouhani and foreign minister zarif pretend

here's our political correspondent peter saull. they once stood side by side. with similar backgrounds, both in high office, playing for the same team. that was until the eu referendum. as his men was serialised in the sunday times testified, the then prime minister tried to persuade his old chum to back remain. david cameron writes this, the condition i am left with is he wrist an outcome he did not believe in because it would help his political career. you could not accuse us of being anti—european. you could not accuse us of being anti-european. they have long been questions about what motivated the poster boy of brexit. but is he a real believer in the cause? his cabinet colleagues suddenly believe so. remain would have been the easier career choice, boris jansen led the campaign because he believes in brexit and is committed to delivering it. david cameron is disappointed with borisjohnson but david cameron is disappointed with boris johnson but with other brexiteers, he is not pulling any punches. on michael gove, he writes this. michael gove, the liberal

our political correspondent peter saull is with me now.e than three years since david cameron left office and resigned immediately from the house of commons and ceased to be an mp. he has been pursuing his business interests and other political interests and other political interests but he is coming back with a real kind of punch in the stomach for thejohnson government. a real kind of punch in the stomach for the johnson government. yeah, and he has been largely silent. here be out with less than 50 days to go until we are due to leave the european union and his words are going to have some impact, i think. an interesting insight into what was going to his mind at the time. he resigned on the steps of downing street the morning after the referendum, apparently he and his wife had a gin at eight o'clock in the morning before doing so. on a serious note it is more about the conversations that happen between him and other senior conservatives in the run up to that referendum that our own interest, especially borisjohnson. he that our own in

our political correspondent peter saull has been giving me more details about what the former prime ministersaying in extracts from his new memoir. david cameron has been pretty much silent since resigning rather acrimoniously the morning after the eu referendum, and this book, which i dare say will be on a lot of politics watchers‘ christmas lists in a couple of months‘ time, we're getting the first extracts from it now in the sunday times. some of the key quotes. he talks about trying to persuade borisjohnson to back remain during the eu referendum but he says he came to the conclusion that borisjohnson risked an outcome he didn't believe in because it would help his political career. a lot of people have suggested in the past that borisjohnson‘s motivations for brexit perhaps are not as strong as he might suggest now. that is certainly the feeling of david cameron, anyway. while he is disappointed with borisjohnson, he seems more angry with michael gove, according to the extracts. he saw michael gove as a close friend and felt perhaps betrayed by him coming out to campaign the way he did

let's get more on this now from our political correspondent peter saull.a bit of this yesterday in the newspapers. anything new in particular we are learning today? yes, further revelations this morning from david cameron, who has been pretty silent, resigning rather acrimoniously on the morning after the referendum in 2016. but now, questioning the motives of boris johnson for supporting the leave side in the first place, believing that he supported it to help his own career. also, david cameron, once considered to be a close friend, is not anymore. he says michael gove, a liberal minded and carefully considered conservative intellectual, had become a "foa m —flecked intellectual, had become a "foam—flecked fa rage—ist", intellectual, had become a "foam—flecked farage—ist", warning that the whole population of turkey was about to flood into the eu. this morning, in the mail on sunday, he co m pa res morning, in the mail on sunday, he compares the uk to the comic character the incredible hulk, saying that the matter he gets the stronger he gets, and that w

let's get more on this now from our political correspondent peter saull.nteresting stuff, there's two angles we mentioned but i guess people would say we have heard that before. lots of people have speculated in the past about boris johnson's motivations for backing brexit although david cameron opt no better than most given their shared history. this talks about the period in the run—up to the referendum when david cameron was trying to win over some of his senior conservative collea g u es some of his senior conservative colleagues to come out and back remain. he speculates boris johnson's main reason for doing so was to further his own career. he sought michael gove back brexit and he thought, i want to be the darling of the conservative party, not michael gove. you could say this worked out quite nicely for boris johnson whatever his motivations but david cameron is equally if not more scathing of other conservatives, including priti patel, michael gove and penny mordaunt. borisjohnson has given an interview to the mail making it crystal clear what he

let's get more on this now from our political correspondent peter saull.ing are all these comments? thesejudgements from how damaging are all these comments? these judgements from the former pm? of course david cameron hasn't said a great deal over the past three yea rs, a great deal over the past three years, and people have speculated about boris johnson's years, and people have speculated about borisjohnson‘s motivations for some time, but the fact it is the former pm who is coming out and saying it makes it potentially damaging for boris johnson, saying it makes it potentially damaging for borisjohnson, although i think david cameron's reputation is certainly not what it was a few yea rs is certainly not what it was a few years ago. the extract in question refers to the run—up to the referendum in 2016, and david cameron's attempts to win over his fellow senior conservatives to come out and back remain. ultimately he failed when it comes to boris johnson, but he had a game of tennis with him and offered him thejob of defence secretary, and he says bori