Plane crash at southern Utah airport kills 4

ST. GEORGE, Utah (AP) -- Authorities say a small plane has crashed at a municipal airport in southern Utah, killing all four people on board.

St. George city spokesman Marc Mortensen says the downed single-engine Cessna 172 was found at about 6 a.m. Saturday about 400 feet from the runway. He says it's uncertain whether the crash occurred shortly after takeoff or upon landing.

FAA spokesman Ian Gregor says the plane crashed under "unknown circumstances." Federal authorities are investigating the cause.

National Weather Service meteorologist Monica Traphagan tells The Spectrum of St. George that there were no severe weather conditions at the airport during the early morning hours on Saturday.