Libyan rebels have fought their way into the strategic city of Zawiya west of Tripoli on in their most significant advance in months, battling snipers on rooftops and heavy shelling from Muammar Gaddafi’s forces holding the city.

Libyan rebels fought their way into the strategic city of Zawiya west of Tripoli today in their most significant advance in months, battling snipers on rooftops and heavy shelling from Muammar Gaddafi’s forces.