Secretary General of Jeddah-based Organization of Islamic Cooperation (OIC) Hissein Ibrahim Taha congratulated the Custodian of the Two Holy Mosques King Salman bin Abdulaziz Al Saud and His Royal Highness Prince Mohammed bin Salman bin Abdulaziz Al Saud, Crown Prince, Deputy Prime Minister of the Kingdom of Saudi Arabia, on the success of this year's Hajj. In a statement, he cited the great services being extended to pilgrims by the Saudi goverment, private sector and people.