CHEYENNE, Wyo. - The Laramie County Sheriff’s Office is investigating a fatal crash involving a vehicle and a train on County Road 154 north of Interstate 80, officials said Sunday.

According to the sheriff’s office, the department’s Traffic Enforcement and Crash Reconstruction Unit responded to the scene, where the single occupant of the vehicle was pronounced dead. No additional details about the victim or the circumstances of the crash have been released.

Authorities said an update is expected Monday after family notifications are completed. The investigation remains active.