Libyan protesters stand on the rooftop of a burned police station during a demonstration against Moammar Gadhafi in Tobruk, Libya, on Wednesday, Feb. 23, 2011. Heavy gunfire broke out in Tripoli as forces loyal to Col. Gadhafi tightened their grip on the Libyan capital while anti-government protesters claimed control of many cities elsewhere and top government officials and diplomats turn against the longtime leader. (AP Photo/Hussein Malla)

Photo by: Hussein Malla

Libyan protesters stand on the rooftop of a burned police station during a demonstration against Moammar Gadhafi in Tobruk, Libya, on Wednesday, Feb. 23, 2011. Heavy gunfire broke out in Tripoli as forces loyal to Col. Gadhafi tightened their grip on the Libyan capital while anti-government protesters claimed control of many cities elsewhere and top government officials and diplomats turn against the longtime leader. (AP Photo/Hussein Malla)