A 9-year-old girl died at a Missoula hospital Sunday after sustaining serious injuries in a head-on collision the night before south of Lolo.
Also killed in the crash was the 23-year-old woman driving one of the vehicles. She was pronounced dead at the scene.
The crash happened around 5:30 p.m. Saturday at mile marker 80 near Traders Brothers outside of Lolo.
Montana Highway Patrol trooper Mike Burman said the crash occurred when the driver of a Ford pickup truck heading south lost control of the vehicle and drifted over the center line, hitting a northbound GMC Acadia sport utility vehicle.
The crash closed the highway and traffic was diverted onto Old Highway 93 for four hours.
The driver of the truck, the 23-year-old female, was killed. A 25-year-old male passenger in the truck, as well as the 47-year-old female driver of the SUV and two girls who were passengers, all sustained serious injuries and were taken to Missoula hospitals. One of those girls died Sunday.
Burman said it appeared the driver of the truck was traveling too fast for road conditions, but that alcohol was not suspected to have been a factor in the crash. Officers are still investigating the crash.
No names have yet been released, pending notification of families.