Two dead in SA road crashes

Two men have been killed in separate crashes on South Australian roads.

A 41-year-old Salisbury Downs man was a passenger in a car on the Salisbury Highway at Dry Creek on Saturday morning when it collided with another car.

He died at the scene, while the male drivers of each car have been taken to hospital in serious conditions.

Another man died when his motorcycle crashed at Hamley Bridge, north of Adelaide.

The 31-year-old Stockport man was found on Gilbert St at 6.45am on Saturday, and he died at the scene.