SPOKANE VALLEY, Wash. -

A man is in stable condition in the hospital after he drove onto some railroad tracks and his car was struck by a train.

The driver, a 68-year-old man, stopped at the railroad crossing at Trent Ave. and Vista Rd. and then, for an unknown reason, drove through the lowered crossing arm and his vehicle was struck by a Burlington Northern Santa Fe freight train.

The train pushed the vehicle about 100 feet down the tracks before it could stop.

Fire crews had to use the jaws of life to pry his vehicle open and extricate the man.

"Witnesses are telling us he was stopped at the crossing arm, the crossing arm was down, [the] vehicle proceeded through the crossing arm," Spokane County Sheriff's Deputy Mark Gregory said.

Investigators are checking to see if the man had some sort of medical condition that contributed to the collision.