The Montana Highway Patrol says four people were killed and another was injured in a head-on crash on an Interstate 90 frontage road on the Crow Indian Reservation.

The patrol says a Ford Mustang collided with a disabled Dodge Durango between Dunmore and Crow Agency at about 6 p.m. Thursday.

The 41-year-old Hardin woman driving the Mustang died at the hospital in Crow Agency while her passengers, a 17-year-old boy from Hardin and a 19-year-old woman from Crow Agency, died at the scene.

A 27-year-old Crow Agency man in the Durango also died, while the 25-year-old Crow Agency man who was driving was hospitalized. The patrol says only the survivor was wearing a seat belt.

The crash remains under investigation. The victims' names haven't been released.

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