Libya: Advancing with the rebels from the east

Rebel fighters to the east of the Libyan capital Tripoli say they are still facing fierce resistance from Col Muammar Gaddafi's troops.

The fighters have managed to advance from the town of Zlitan, but are battling the regime's soldiers in a valley called Wadi Kam.

The BBC's Orla Guerin reports on the struggle to clear the road to Tripoli.