Clean up is underway in western Iowa’s Greene County following a train derailment Sunday night. The Greene County Sheriff’s Departments says about 37 of 140 Union Pacific rail cars left the tracks at around nine p.m. Sunday, five miles west of Jefferson.

Sheriff Tom Heater says the train was traveling east when the middle group of cars derailed at a crossing. The cars were carrying coal, and some of it spilled onto the ground. Other railcars remained upright after leaving the tracks. Both tracks remained blocked this morning. Officials are still trying to find out what caused the derailment.

By Ric Hanson, KJAN, Atlantic