One person was seriously injured, following a crash on Highway 93 near Stevensville on Monday night.
According to the Montana Highway Patrol, troopers responded to a two-vehicle crash on the top of Bass Creek Hill near mile marker 69 at about 9:55 p.m.
MHP Trooper Gane says that a Marcus Daly Memorial Hospital ambulance was transporting a patient to an area hospital, heading northbound on the highway.
A Chevy Equinox, traveling in front of the ambulance, pulled off the right shoulder, then tried to make a left-hand U-turn to head southbound on the highway.
Trooper Gane says that's when the ambulance struck the Equinox at the driver's side door.
A 16-year-old girl was driving the Equinox and suffered serious injuries in the crash.
She was transported to an area hospital.
A young man in the Equinox and a paramedic in the ambulance both sustained minor injuries.
Trooper Gane says that speed and alcohol are not factors in this crash, but an investigation continues.