Two men dead in three-car Sydney smash

Two young men have died in a three-car crash in Sydney's northwest.

A Subaru was travelling south on Richmond Road at Marsden Park on Wednesday night when it collided with the rear of a car on the same side of the road. The force of the collision sent the Subaru careering into a Hyundai heading in the opposite direction.

The 29-year-old driver of the Subaru died at the scene while the 22-year-old man behind the wheel of the Hyundai suffered critical injuries and was airlifted to Westmead Hospital. He died some hours later.

The 22-year-old woman driving the third vehicle was uninjured.