Two people are seriously injured following a major multi-vehicle crash on the M2 at North Rocks on Friday.
Police say a number of cars and a truck collided on the eastbound lanes of the M2 between Windsor and Pennant Hills roads around 4.10pm.
Emergency crews including two rescue helicopters are on the scene, working to free two people who became trapped in the wreckage.
Diversions are in place leading up to the crash site. For the latest on road conditions motorists should check www.livetraffic.com