Police are looking for a truck driver who failed to stop following a serious crash at Mount Hutton.
A 70 year old man had pulled over on the Inner City Bypass under the Warners Bay Road overpass to cover the load of his ute and trailer after it started to rain just before 1:30pm Tuesday afternoon.
A large white truck went past, hitting him.
The truck driver failed to stop, leaving the elderly man suffering broken ribs along with chest and leg injuries.
The injured man remains in a serious but stable condition in John Hunter Hospital.
Police want to hear from anyone who saw the collision or who might have dash cam footage.