Leaders and heads of delegations of the Gulf Cooperation Council Member States left here this evening after the conclusion of their 12th consultative summit meeting. At King Khalid International Airport, Sheikh Hamad bin Khalifa Al Thani, Emir of the State of Qatar; King Hamad bin Isa Al Khalifa of the Kingdom of Bahrain; Sheikh Sabah Al-Ahmad Al-Jaber Al-Sabah, Amir of the State of Kuwait; Sheikh Mohammed bin Rashid Al Maktoum, Vice-President of the United Arab Emirates, Prime Minister and Ruler of Dubai and H.H. Sayyid Fahd bin Mahmoud Al Saeed, Deputy Premier for Cabinet Affairs in the Sultanate of Oman were respectively seen off by a number of princes, ministers and officials.