Saskatoon police are asking for the public's help after a fatal crash on Circle Drive.

On Wednesday evening, police say a southbound compact car crossed the ditch on Circle Drive near Attridge Drive and hit a semi-trailer truck head on.

The driver of the car died of his injuries in hospital.

Police are asking for any dashboard camera footage that may have recorded the event. 

Speed and alcohol are not suspected to be factors. Police continue to investigate.