The NSW Ambulance Rescue Helicopter has been called to a serious two-car accident on the Princes Highway at Tomerong.
The accident, just south of Hawken Road, has closed the Princes Highway in both directions.
The helicopter has landed at the nearby Log Cabin.
A van and a sedan were involved in the accident and one person is trapped.
Emergency crews are at the accident scene.
Diversions are in place via Hawken Road and Island Point Road.