A man was taken to Liverpool Hospital with a fractured sternum after two cars collided in Lansvale on Sunday afternoon.
Police allege a grey Toyota Corolla driving south-east on Hollywood Drive turned right onto Ferry Road without stopping and collided with a maroon Holden Commodore.
Police, fire brigade and ambulance crews attended the accident, closing off the road for a few hours.
The commodore's driver had to be extracted from the car after fracturing his sternum. His passenger was also injured.
They were both taken to Liverpool Hospital.