A small plane that crashed early Saturday at a municipal airport in southern Utah killed all four people on board, authorities said. The downed single-engine Cessna 172 was found at about 6 a.m. some 400 feet from the runway, said Marc Mortensen, assistant to the St. George city manager. It's uncertain whether the crash occurred shortly after takeoff or during a landing attempt, he said. The plane crashed under "unknown circumstances," Federal Aviation Administration spokesman Ian Gregor was quoted as saying by the Associated Press.
