The Oklahoma Highway Patrol needs help solving a deadly hit-and-run.

Witnesses said the driver of a white semi-truck hit a man along I-40 over the weekend and kept driving. They said the victim, Robert Rabe, had pulled off onto the shoulder to change a flat tire when he was hit.

Officials say the semi driver kept driving and was headed into Arkansas. Troopers said the semi may have damage to its front or side.

If you know anything about the crash call OHP at 918-627-0440.