Fighting rages in Tripoli, Libya, as rebels advance

Libyan rebels are battling troops loyal to Col Muammar Gaddafi for control of Tripoli, after they launched an assault on the capital from several directions.

Rebel commanders say they have taken control of about 80% of the capital, including the headquarters of state TV.

But fighting is still raging in parts of the city, and the rebels have not managed to find the Libyan leader.

Matthew Price reports from Tripoli.