Two people were injured in a crash near the intersection of Hemmi and Hannegan roads, just east of Ferndale on Thursday.
Troopers said a white car going west on the road failed to stop at a stop sign and collided with a Chevrolet Silverado, causing it to roll.
The driver of the car suffered life-threatening injuries, authorities said.
The driver of the truck suffered minor injuries.
Troopers did not provide any information on the condition of the drivers.
The cause of the crash is under investigation.
Cox Media Group