An out-of-control bushfire is raging through bushland northwest of Sydney.
Fire crews are working to contain the blaze burning in the Windsor Downs Nature Reserve in the Hawkesbury area after sparking from an unknown cause on Saturday afternoon.
The NSW Rural Fire Service said that by about 5pm the fire had burned about seven of the 900-acre reserve.
The service shared an alert to Twitter late afternoon, saying its current advice for the fire was Watch and Act.
“A water bombing helicopter has been sent to assist crews,” the tweet read.
Advisory Circular Australia said a helicopter was circling around the fire, not too far from Bligh Park Public School.
The RFS added there were no current threats to homes or lives, and crews were in the process of “getting the upper hand” on the fire.
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