FORT COLLINS, Colo. (CBS4) – Police in Fort Collins are trying to find out which driver was at fault in a deadly accident.

(credit: CBS)

A semi truck was turning left onto Timberline Road at Harmony Road Wednesday night. That’s when a sedan collided with it.

The driver of that sedan, a 28-year-old man, died at the scene.

A nine year old in the back seat and the semi driver had minor injuries.

(credit: CBS)

Investigators are trying to find out what color the traffic lights were as each vehicle entered the intersection.