JOHNSON COUNTY, Mo. — A crash on U.S. 50 in Johnson County left a St. Louis man injured Thursday morning.

The Missouri Highway Patrol responded to U.S. 50 Highway, about 450 feet west of State Route 131 in Johnson County at approximately 9:17 a.m. Thursday.

An eastbound vehicle operated by 41-year-old Marvin Williams overtook and struck the rear of a farm tractor operated by 79-year-old Thomas O. Slack, of Holden.

Williams suffered moderate injuries in the collision. He was taken by ambulance to Research Medical Center to receive care.