With Moussa Koussa, Libya's former foreign minister, now in London being questioned by UK authorities, questions have been raised regarding more possible defections from Muammar Gaddafi's inner circles.

Many of Libya's ambassadors, and some members of Gaddafi's cabinet, defected in the early days of the revolution, and Koussa, a former Libyan intelligence chief, is the latest in a string of such officials.

Al Jazeera's Jonah Hull reports from London.