The Libyan leader, Colonel Muammar Gaddafi has again vowed never to leave Libya, the land of his ancestors. His speech was broadcast to supporters in the city of Zawiya, which was taken back from rebels after fierce fighting in the early stages of the revolt. The remarks came after the US decided to recognise the opposition as Libya's legitimate governing authority. Col Gaddafi stressed his intention to remain in power. More than 30 explosions have been heard in the Libyan capital, Tripoli accompanied by the sound of fighter aircraft this morning. Libyan television said civilian and military targets have been hit in the eastern suburb of Tajoura. It said there were casualties, but gave no details.