Hundreds of supporters of Colonel Muammar Gaddafi have staged a rally in the Libyan leader’s Tripoli compound.
It was bombed in 1986 by the United States after a Libyan-backed attack on a Berlin nightclub.
However, there are reports that a Libyan envoy has been in London for talks with British officials and discuss a possible exit strategy for Gaddafi.
The British government has declined to comment.
It comes after the defection of Libyan Foreign Minister Moussa Koussa on wednesday.
Al Jazeera also reported that four other senior Libyan officials were planning to defect, including the intelligence minister and deputy foreign minister.
Ali Abedessalam Treki, recently appointed as Libya’s ambassador to the UN, has also said he will now not accept the post.