David Cameron and Barack Obama were peppered with questions about allegations that BP played a role in securing the release of the convicted Lockerbie bomber Abdelbaset al-Megrahi. Mr Cameron said he and the president had had what he called "a violent agreement" on the subject. He urged people not to confuse BP's responsibilities in the Gulf of Mexico with the Libyan bomber, but he said his government would look again to see if any further light could be shed on the whole affair. For his part, Mr Obama said he was confident the Cameron government would make sure the facts were known.

The British energy firm BP says it will sell businesses in Vietnam and Pakistan to help meet the costs of dealing with its oil spill in the Gulf of Mexico. These are the first major asset sales BP has announced since saying it would raise 10 billion dollars to pay for the spill.