His Royal Highness Prince Mohammed bin Salman bin Abdulaziz, Crown Prince, Vice President of the Council of Ministers and Minister of Defense, left here tonight. At King Abdulaziz Airbase, HRH Crown Prince was seen off by Prince Saud bin Naif bin Abdulaziz, Governor of the Eastern Region, Prince Ahmed bin Fahd bin Salman bin Abdulaziz, Vice Governor of the Eastern Region, and a number of senior civil and military officials.