MANGUM, Okla. (AP) - The Oklahoma Highway Patrol says a witness is reporting a twin-engine plane appeared to have engine trouble before it crashed, killing all three aboard in an area about 150 miles southwest of Oklahoma City.

Trooper Betsy Randolph said the Beechcraft Baron crashed Saturday afternoon near Mangum in Greer County. The dead were identified by authorities as the 53-year-old pilot, Stephen Scott of Mangum, and two passengers: 45-year-old John Hall and 20-year-old Edi Ortega, both of Altus. She said she didn't know where the flight began or was headed.

A Patrol statement early Sunday said firefighters used a tool to extricate the victims from the wreckage and all were pronounced dead on the scene.

The Federal Aviation Administration is investigating and no immediate cause was given for the crash.

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