Pro-Gaddafi forces have launched a fierce attack on Libyan rebels in Zawiya, sources in the town say.
Casualties were reported as 50 tanks and 120 pick-up trucks launched three attacks on the rebel-held town 50km (30 miles) west of the capital, Tripoli.
“I don’t know how many are dead – they tore Zawiya down to ashes,” a source in the town told the BBC.
Elsewhere, warplanes fired missiles on residential areas and near rebel positions in the oil port of Ras Lanuf.