Crown Prince Sultan bin Abdulaziz, Deputy Premier, Minister of Defense and Aviation and Inspector General, left here today for Doha at the start of an official visit to Qatar at an invitation of Sheikh Hamad bin Khalifah Al Thani, the Emir of Qatar. At the airport, he was seen off by Prince Fahd bin Mohammad bin Abdulaziz, Prince Naif bin Abdulaziz, the Interior Minister, Prince Salman bin Abdulaziz, the Governor of Riyadh Region, other princes and officials.