Ten Libyan rebels were reported killed and 172 wounded in an attack on the eastern oil port of Brega Saturday, while insurgents drove back forces loyal to Muammar Gaddafi in the west. In the latest of a series of speeches apparently designed to show he enjoys support in the areas he controls, Gaddafi described the rebels as worthless traitors and rejected suggestions that he was about to leave the country. “They said Gaddafi will go to Honolulu,” he said in a televised speech. “This is funny: To leave the graves of my forefathers and my people? Are you serious?” His defiance came a day after Western and other world powers, led by the United States, said the rebel leadership was the legitimate government of Libya. Reports have circulated that Gaddafi is seeking a negotiated way out of the crisis. Brega's oil resources make it a prize for the rebels, who have been trying to dislodge Gaddafi's troops in the face of rocket bombardments, according to Al Jazeera television. Most opposition fighters are about 20 km (12 miles) outside Brega, kept back by Grad rockets fired by government forces, the network reported. The rebels had however captured four government soldiers. In the Western Mountains, where insurgents are trying to push toward Tripoli, heavy fighting erupted Saturday. Sustained gunfire and volleys of artillery could be heard from the village of Bir Ayad, 15 km (9 miles) south of the front line at the town of Bir Ghanam. Rebels at Bir Ghanam hold the high ground on the outskirts of the town, their closest position to Tripoli, about 80 km (50 miles) away. Ahmed, a rebel fighter in Bir Ayad, said a convoy of about 15 vehicles from Gaddafi's forces tried to approach Bir Ghanam, but the rebels fired at it and the convoy retreated after a about an hour of shooting. “They were in a column at first but when we started firing they split into groups of three or four vehicles and all of them fled,” local rebel commander Fathi Alzintani told Reuters. Rebels in the Western Mountains have made progress in recent weeks after repelling assaults by Gaddafi's forces. Their next goal is Garyan, a town that controls the highway south from Tripoli. But the rebels have been hampered by divisions, ill-discipline and supply problems. – ReutersLatest developments NATO said it conducted 115 air sorties Friday, 46 of them strike sorties that aim to identify and hit targets but do not always deploy munitions. Since NATO took over command of airstrikes on March 31, its aircraft have conducted 15,308 sorties, including 5,767 strike sorties. NATO members participating in airstrikes in Libya include France, Britain, Canada, Denmark, Norway, Belgium, Italy and the United States. Seventeen ships under NATO command are patrolling the central Mediterranean Sea to enforce a UN arms embargo. On Friday, 13 vessels were hailed to determine destination and cargo. Three were boarded but they were not diverted. A total of 1,776 vessels have been hailed, 171 boarded and nine diverted since the start of the arms embargo. __