A 43-year-old Topeka man died after he was injured Saturday evening in a fall from the back bumper of a Jeep on private property in northwestern Douglas County, sheriff’s officials said Tuesday.

Sgt. Steve Lewis, a sheriff’s spokesman, said the man, Mark Coker, and an acquaintance were riding on the Jeep’s bumper about 8:10 p.m. in the 1800 block of East 56 Road. The location is north of U.S. Highway 40 and near Big Springs. Lewis said other passengers were in the Jeep.

The man was taken by ambulance to Stormont-Vail Regional Health Center in Topeka, where he later died from his injuries, Lewis said. According to a Legacy.com obituary, Coker died Sunday from a severe head injury.

Lewis said sheriff’s officers are conducting an ongoing investigation into the accident.

According to the Shawnee Heights school district, Coker was a longtime district employee and most recently worked as a high school custodian and substitute bus driver.