A missile strike has destroyed a building in Libya's capital, Tripoli, which Western officials say was one of Col Muammar Gaddafi's command centres.
Libyan government spokesman Ibrahim Musa said the strike had targeted an 'administrative building'. Journalists were shown the wrecked building but it was not clear if there were any casualties.
Countries including the US, UK and France are continuing strikes after the UN authorised action to protect Libyan civilians from government forces. Col Gaddafi has been fighting a rebellion that broke out last month.
US officials have said Col Gaddafi himself is not a target of the air strikes, which they say are aimed at his armed forces and air defence systems. A Libyan official said 64 people had been killed in strikes at the weekend, but the figure could not be verified.