MCSO: SUV rear ends semi-truck in west Valley

Authorities say a man was seriously injured when an SUV rear-ended a semi-truck overnight in the west Valley.

According to the Maricopa County Sheriff's Office, an SUV traveling at a high rate of speed rear-ended a semi-truck that was making a U-turn while traveling eastbound on MC-85 at 83rd Avenue.

Following the collision, the SUV veered off the roadway into a guardrail and crashed into a wall.

The driver of the SUV suffered life-threatening injuries and was taken to a hospital.

MCSO says it is unknown if speed or alcohol were factors in the crash.