In Libya, rebels have reportedly massed for a counter-attack against Moamar Gaddafi's forces in the east of the country. They have been battling Mr Gaddafi's forces in the oil town of Brega, the new frontline in their bid to march on Tripoli and the Libyan leader. As battles rage in the east, there has been house-by-house fighting in the bombed-out streets of central Misrata, Libya's third largest city, which has held out against a relentless siege by Mr Gaddafi's forces.The rebels had been beaten back the previous day by heavy shelling from Col. Gaddafi's forces. Without coalition air support, the ill-equipped rebels were pushed back 200 kilometres from the key oil hub Ras Lanuf all the way to Brega, where they regrouped for the counter-attack. Rebel commanders called for air strikes by coalition forces enforcing a no-fly zone over Libya, but the US military's top officer Admiral Mike Mullen said bad weather was hampering the air campaign. It was the third day in a row that the rebels had lost territory. The rebel force is largely made up of volunteers, who often get only a few days of training before they are sent out to the battlefield. There are also reports pro-Gaddafi troops have laid land mines near the frontline city of Ajdabiya to box the rebels in.