Multi-vehicle crash leaves two dead, a dozen injured

The crash occurred just before 1pm and involved five vehicles. 

Police confirmed that two people had died and approximately a dozen others were being treated by NSW Ambulance paramedics for various injuries.

Officers have established a crime scene are awaiting the arrival of specialist police.

The Great Western Highway is closed in both directions and is expected to remain a crime scene for a considerable amount of time. 

Drivers are urged to avoid the area.