The Obama administration has asked the governments of Scotland and Britain to review the decision to release Abdel Baset al-Megrahi. Obama says he is confident that the governments will provide all relevant facts.
Oil giant BP has acknowldged that it urged the British government to sign a prisoner transfer agreement with Libya, but says it did not specifically discuss al-Megrahi's case.
Al-Megrahi served eight years of a life sentence for the 1988 bombing of a Pan Am Flight as it flew over Lockerbie, Scotland, en route to New York. The bombing killed 270 people, most of them American.