UPDATE: 6:10pm, Freeway is still blocked west bound due to the earlier incident.

The west-bound lanes of the Western Freeway are blocked near Ballarat, after a serious crash and hazardous materials incident near a petrol station.

Traffic is backed up for more than half a kilometre at Warrenheip.

The alarm was raised at approximately 3:45pm

Firefighters are onsite clearing away debris left behind.

EARLIER TODAY: Police on scene of fatal accident in Kurunjang, Melton

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Author: Dev