A second person has died from injuries sustained in the two car crash in Coolalinga on Friday 16 March.

A 59-year-old female sadly passed away this morning.

A 40-year-old female died at the scene.

The road toll for 2018 is now 10, compared to seven at the same time last year.

Investigators continue to request anyone who witnessed the crash or who may have dash cam footage, who have not yet spoken to police to please contact them on 131 444.

In particular, police are seeking the driver of a white Hilux utility that was turning right from the Stuart Highway into the United Service Station at the time of the crash.