On behalf of Crown Prince Abdullah bin Abdulaziz, the Deputy Premier and Commander of the National Guard, Prince Naif bin Abdulaziz, the Interior Minister, arrived here today at the head of a delegation to participate in ceremonies of the signing of Sudan's new constitution and the installation of two deputies for the Sudanese President. He was welcomed at Khartoum International Airport by Sudanese Foreign Minister Dr Mustafa Othman Isma'il and a number of senior officials as well as Saudi Charge D'affaires in Khartoum Saad Al-Qarni.