DALTON, Neb. (AP) — Authorities are seeking the driver of a car involved in a fatal collision in western Nebraska.

The two-vehicle accident occurred around 9:40 a.m. Tuesday about two miles south of Dalton on U.S. Highway 385. Cheyenne County Sheriff John Jenson says the vehicles made contact as the one driven by Martin Geiger Jr. attempted to pass the other. Geiger’s car ran into a ditch and rolled twice, ejecting Geiger and his passenger, 54-year-old Kathy Berger.

Jenson says Geiger died at the scene and Berger was flown to Regional West Medical Center in Scottsbluff.

The other vehicle left the scene, heading north on the highway.