Prince Salman bin Abdulaziz, the Governor of Riyadh region, attended here on Friday a graduation ceremony of Prince Lieutenant Pilot Khalid bin Salman bin Abdulaziz, after successfully completing the program of military aviation at Columbus Military Base in Mississippi State of the United States of America. Among the Saudi graduates, there were Prince Lieutenant Pilot Fahd bin Seif Al-Nasr bin Saud bin Abdulaziz and Lieutenant Pilot Mohammed bin Baddah Al-Ajami. Upon arrival at the base, Prince Salman was received by a number of U.S. military officials. Prince Salman was accompanied by a number of princes. Later, the Prince accompanied by the princes left the base airport for New York.