A small, homebuilt plane crashed on a California interstate Tuesday, hitting a car and killing one person in the plane, authorities said.

It was not immediately known whether the car's occupants were injured.

Federal Aviation Administration spokesman Ian Gregor said the Titan Tornado tried to land Tuesday morning on Interstate 40, about 10 miles west of Needles in eastern San Bernardino County.

One person in the plane died. Gregor did not know whether the victim was the pilot or a passenger.