Sydney man dies in intersection crash

A man has died and three others have been injured when two cars collided at an intersection in Sydney's west.

One of the drivers, believed to be aged in his 50s, died at the scene of the crash in Cabramatta, while the three other people in the cars were taken to hospital with non-life-threatening injuries.

Police say a crime scene has been established and the surviving driver will undergo mandatory drug and alcohol tests.