FOUR homes at Macquarie Hills were evacuated early this morning after hoons set alight a utility containing an oxy acetylene tank.
The tank was in the back of a utility full of building equipment that had been stolen and driven to bushland behind Fitzwilliam Circuit at Macquarie Hills.
The ute was abandoned and set alight about 3.20am.
Police and Fire Brigade hazmat specialists feared the tank could explode.
The area was declared safe about 8am.