The Hume Highway is closed northbound between the Illawarra Highway and Medway Road at Berrima after a truck crash.
Light vehicles are being diverted onto the Illawarra Highway to Moss Vale, Waite Street, Berrima Road, Oldbury Street, Old Hume Highway and Medway Road to return to the Hume Motorway.
Heavy vehicles are being directed by emergency services and traffic crews on site.
Motorists are advised to allow extra travel time and exercise caution.
Emergency Services have been called to a truck crash at Berrima.
The incident took place just after 11am in the northbound lanes of the Hume Highway near Golden Vale Road.
Traffic is currently queued back about two kilometres, so motorists can expect a few delays.
Vehicles are slowly passing the crash site using the fast shoulder.
The driver of the truck has been treated by NSW Paramedics, but is OK.
IMAGE CREDIT: NSW PARAMEDICS