About 5.50am on Thursday  a car being driven by a 21-year-old female from Kiama Downs made a right turn from Woollybutt Drive on to the Princes Highway. 

According to police, there is a clearly displayed ‘give way’ sign  at the intersection that the driver failed to obey.  

In making the turn the vehicle allegedly collided with another car being driven by a 61-year-old man from Wyong, and failed to stop and exchange particulars.  

The second car, being driven by the Wyong man is believed to have then rammed the rear of the car being driven by the female driver.  

This collision caused that car to collide with the centre median fence. 

As a result of the impact it appears that a 20-year-old female passenger from Oak Flats in the rear seat of that car was ejected through the rear window, sustaining a major head injury and other minor injuries.  

She is currently in hospital undergoing surgery.  

This incident is currently under investigation by Lake Illawarra Highway Patrol officers.  

Police are appealing to the public to contact them if they have any information that may assist in the investigation of this incident.  

Contact can be made at the Lake Illawarra Police Station on 4232 5599, Crime Stoppers on 1800 333 000 or the Police Assistance Line on 131 444.