Firefighters believe a small spark when a petrol tanker was refueling could have caused a massive petrol station fire that broke out in Sydney‘s south-west.

Luckily no one was injured when the inferno engulfed a fuel tanker, multiple cars and LPG cylinders leaving Westside Petroleum at Campbelltown completely gutted this morning.

Approximately 60 Fire and Rescue NSW (FRNSW) crews and 16 fire trucks responded to the blaze just after 10.15pm on Friday.

9News understands the spark created a small flame which burned for two to three minutes before causing the huge explosion.

Neighbours said they heard the LPG gas canisters exploding, and saw some launching high into the sky.

Residents on the quiet suburban street woke their children up and ran when the petrol station went up in flames.

About 50 residents in the area have been evacuated this morning.
“We have no reported injuries at this time,” Superintendent Gregory Wright from Fire and Rescue NSW said.

“The fire is under investigation. The fuel truck driver and service station attendant are assisting in our inquiries,” Wright said.

Locals reported sounds of explosions in the area to before seeing flames jump high into the night sky.

FRNSW confirmed the main building was well alight and has partially collapsed plus a petrol tanker, three cars and several LPG cylinders are also engulfed in flames.

There were also fears for a liquor store nearby, which had smoke coming out of the premises.

Multiple road closures are in place.