Pakistan's President Asif Ali Zardari has expressed deep sorrow and grief over the demise of Crown Prince Naif Bin Abdulaziz, Deputy Premier and Minister of Interior. The President in his condolence message said that the death of Prince Naif was a great loss not only to the Kingdom of Saudi Arabia but also to the Muslim World and especially to Pakistan as he was a very strong friend of Pakistan, according to a report of the Associated Press of Pakistan. Prince Naif played important and pivotal role in promoting Pak-Saudi relations and always stood with Pakistan at all difficult times, said the President.