Libyan rebels and forces loyal to Col. Muammar Gaddafi have fought running battles in Tripoli, a day after the fugitive leader's compound was overrun. There have been fierce firefights in Bab al-Aziziya, as well as in several southern and central areas of the city. However, foreign journalists have been allowed to leave a hotel where they have been confined for several days. Gaddafi's whereabouts are unknown, but overnight he vowed in a speech to fight until "victory or martyrdom". Host Marco Werman gets the latest from the BBC's Rana Jawad in Tripoli.