CHALDOVAR, Kyrgyzstan - A plane crashed today in the rugged mountains of the Central Asian nation of Kyrgyzstan, a country where the U.S. operates an air base to help its war effort in Afghanistan.A high ranking military official says that the three airmen aboard a downed KC-135 Tanker in Kyrgyzstan are from Fairchild Air Force Base.There's no word on the fate of the crew.The search for three crew members has been suspended for the night.A U.S. defense official in Washington says the plane was on a refueling mission for war operations in Afghanistan at the time of the crash. Pieces of the plane were left scattered across a grassy field bordered by mountains. According to an official in Kyrgyzstan, the front section of the plane hasn't yet been found. The rest of the aircraft was badly burned in the crash. He says the search for the crew will resume tomorrow morning. The crash site will remain under guard.