Hull, IA (Northwestiowanow.com) — A Northwest Iowa man fell out of a bus and received serious injuries early Saturday morning.

The Sioux County Sheriff’s Department says 21-year-old Levi Koopmans of Ireton was aboard the “All 4 Fun” party bus, when he apparently leaned against an unlatched window and fell on the roadway. He was taken by ambulance to the hospital in Sioux Center and airlifted to Sioux Falls.

Rock Valley Police and Hull Fire and Ambulance assisted at the scene, about two and a half miles West of Hull on Highway 18. The incident was reported around 1:15 Saturday morning.