A bomb attack on Friday in southern Yemen killed at least 16 pro-government fighters, a military official said, in one of the deadliest operations claimed by Al-Qaeda jihadists in months. An explosive-laden vehicle targeted a site of the Southern Transitional Council (STC), a separatist group allied with the government, said STC spokesperson Mohammed Al-Naqib. The attack at the barracks in Abyan province killed at least 16 fighters and wounded 18 others, Naqib said, blaming Al-Qaeda which claimed the operation. The death toll was expected to climb due to the severity of the injuries, Naqib tol…