The driver lost control of the vehicle on Flinders Highway north of the Coffin Bay turnoff some time before 3am.

The vehicle rolled through trees on the side of the highway and collided with a tree.

The driver died at the scene but the passenger, a 31-year-old man also from Tumby Bay, was taken to hospital and treated for non-threatening injuries and has since been released.

West Coast police investigating the crash believe the vehicle had come from Coffin Bay and are seeking witnesses to the incident.

Chief Inspector Brad Flaherty said the vehicle’s tyres appeared to be unroadworthy and police will investigate as to whether alcohol may have been a contributing factor to the crash.

This death takes the State’s road toll to 68 compared to 40 this time last year.