In implementation of the directives of the Custodian of the Two Holy Mosques King Abdullah bin Abdulaziz Al Saud, the Saudi Siamese twins arrived At Riyadh Air Base here yesterday coming from Al-Baha region on a medical evacuation aircraft. Upon arrival at King Abdulaziz Medical City-National Guard, the Saudi Siamese were received by the specialized Siamese twins separation operations team led by Minister of Health Dr. Abdullah bin Abdulaziz Al-Rabia'h. The twins were hospitalized at the newborn intensive care unit and undergone preliminary tests.