Updated

Security and military officials in Yemen say al-Qaida militants have launched a major attack targeting army, security and government buildings in a southern city, killing at least 16 troops.

They say the attack early Saturday struck an army headquarters, the central security headquarters, the Central Bank, the traffic police department, the post office and the agricultural bank in Sayoun, a city in southern Hadramawt province.

The officials say the attackers, however, failed to storm the army command and the security headquarters due to the fierce resistance put up by the government troops. They say the attackers used car bombs at the beginning of their assault.

They say Jalal Baliedy, a prominent al-Qaida leader, led the attack.

The officials spoke on condition of anonymity as they weren't authorized to brief journalists.