General Nasser Naji bin Farid, commander of military forces in central Yemen, was killed on Saturday in an ambush, army and tribal sources said, blaming Al-Qaeda. \"The convoy of General Bin Farid was attacked near Marib by armed men,\" a military source said of the incident in the city, 140 kilometres (87 miles) east of Sanaa, adding that another officer, Colonel Hamid al-Qaher, was also killed. Another two officers were killed and six soldiers were wounded in the attack, said a security source. The gunmen seized two vehicles and several firearms, a tribal source added. Both sources said the attack bears the hallmark of Al-Qaeda. The militant group has carried out multiple attacks against the army and security services, mostly in south and east Yemen where it is well-established.