RICHLAND TOWNSHIP, Clarion Co. (EYT) — The driver of a tractor-trailer was involved in a crash with another unknown vehicle on Interstate 80 on Sunday in Clarion County.

Clarion-based State Police reported that Robert Flick, 55, of Watsontown, was driving a 2000 International Harvester Eagle in the right lane when the unknown vehicle swerved into the right lane and hit the driver side mirror of the Eagle.

Flick lost control of the vehicle, and it spun around in a clockwise direction while sliding off the road and striking the guide rail before coming to a stop facing north and blocking the right lane.