State police say a man was shot and killed on a central Pennsylvania interstate after authorities say he tried to drag a state trooper into a cement median.

Authorities say the man fled Tuesday after a traffic stop on Interstate 83 in York County. They say the trooper was on the driver's side of the vehicle at the time and was dragged about three-tenths of a mile toward a cement median.

Cpl. Ryan Lawrence said the trooper feared for his safety and the public's and fired at the motorist, striking him.

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Police said the suspect was provided medical aid but died at the scene. His name hasn't been released.

Police said the trooper sustained injuries that didn't appear to be life-threatening.

Authorities said they would release further details later.