Muammar Gaddafi's regime warned of "dire consequences" for relations between Libya and Britain if the convicted Lockerbie bomber died in a Scottish jail,secret files released on Sunday showed. In the latest revelations from intelligence documents obtained by media and rights groups in Tripoli,senior British officials feared Gaddafi "might seek to extract vengeance" if the cancer-stricken Abdelbaset Ali Mohmet al-Megrahi was not released. 'The Mail' on Sunday newspaper cited documents found strewn in the abandoned British ambassador's residence in Tripoli,which it said showed the reasons why London wanted the devolved Scottish Government to free Megrahi. The Conservatives of current Prime Minister David Cameron were bitterly opposed to his release,which happened while the Labour Party of Prime Minister Gordon Brown was in office. Robert Dixon,the head of the Foreign Office's north Africa team,wrote to then-Foreign Secretary David Miliband in January 2009,warning that Gaddafi wanted Megrahi to return to Libya "at all costs." "Libyan officials and ministers have warned of dire consequences for the UK-Libya relationship and UK commercial operations in Libya in the event of Megrahi's death in custody," he wrote.