Firefighters say a large grass fire at Morisset which broke out during Tuesday's catastrophic conditions was deliberately lit.
The fire started in a large area of grass just to the west of Gibson Oval off Kahibah and Newcastle Streets at about 5.00pm
A group of youths on motorbikes were seen leaving the area at the time.
A large strike team comprising firefighters from Budgewoi, Wangi, Morisset and the RFS took about an hour to douse the flames.
Firefighters say there were 3 ignitions points, indicating the fire was deliberately lit.
