As to BP's role in the release of the Lockerbie bomber, Cameron said the decision made by the Scottish government was "completely wrong," but refused to link BP to the case.
"That wasn't a decision taken by BP; it was a decision taken by the Scottish government. We have to accept that under the laws of my country, where power on certain issues is devolved to Scotland, this was a decision for the Scottish Executive, a decision that they took," he said.
The prime minister said he had asked for a review of government documents on the release of the Lockerbie bomber in order to see if more needs to be published, but said he does not want a British inquiry.
"We welcome any additional information that will give us insights and a better understanding of why the decision was made," said Obama, stressing that "the bottom line is, is that we all disagreed with it. It was a bad decision."