Police say the driver of a car which hit and killed a woman at Singleton, knew the victim.
The 22 year old woman was behind the wheel of a Toyota Corolla which struck the 61 year old in Dalton Avenue just after 6pm on Tuesday night.
The victim died at the scene.
Police arrested the driver who was taken to Singleton hospital for mandatory tests.
She was later released.
Police are trying to piece together what happened in the moments leading up to the collision.
Any witnesses are urged to call Crime Stoppers on 1800 333 000.