NORRIS, Mont. -

A sport utility vehicle collided with a minivan in southwestern Montana, killing two Idaho residents in the minivan and injuring the driver of the SUV.

The Montana Highway Patrol says an 80-year-old woman from Ennis was driving an SUV on Norris Road west of Bozeman at 4:15 p.m. Wednesday when her vehicle drifted into the oncoming lane, striking a minivan.

The driver of the minivan, a  78-year-old man from Pocatello, Idaho, died at the scene while his passenger, a 75-year-old woman from Pocatello, died of her injuries after being flown to Bozeman Deaconess Hospital.

The Ennis woman was hospitalized in Bozeman.

The names of the victims haven't been released and the patrol is still investigating the crash.