NELIGH, Neb. -- A trooper with the Nebraska State Patrol and three other people were injured in a northeast Nebraska crash Friday evening.

According to NSP spokesman Cody Thomas, the crash occurred at approximately 7:30 p.m. on Highway 20. Thomas said a trooper had completed a traffic stop and was attempting to travel to another call.

Thomas said the trooper was then involved in a two-vehicle crash. The trooper and three occupants in the other vehicle suffered non-life-threatening injuries.

The Nebraska State Patrol has asked the Antelope County Sheriff's Office to investigate the incident.