An official of Yemen's National Security Agency was killed yesterday from wounds sustained during an assault by members of the armed tribe hostile to the authorities in the Yemeni capital-Sana'a. The national news agency "SABA" said Yemen mourned last night Lt. Col. Abdul Wahab Abdul-Malik Abdul-Rahman Al-maqizi, one of the commanders of the National Security Agency, who passed away from his wounds after the attack he had suffered at the hands of the armed elements belonging to one of the Chiefs of the tribes in Al-Hesbah region in the capital city-Sanaa.