UK Prime Minster David Cameron on visit to Libya
UK Prime Minister David Cameron has told Libyans "the British people want to stand with you" after arriving in the country on the second stage of his African trip.
Mr Cameron travelled to Tripoli from Algeria on Thursday morning, and is understood to have walked through Martyr's Square after arriving.
The prime minister also announced that Scottish detectives investigating the Lockerbie bombing in 1988 are to visit Libya.
The BBC's Nick Robinson reports from Tripoli.