After a massive factory fire in Revesby, New South Wales, two men received serious injuries.

Neighbors near the factory heard explosions as the fire spread, more than 100 firefighters were called to Fitzpatrick St, Revesby, about 3.55 P.M.

Two men were injured after battling the huge fire, which reportedly started at the rear of a car at 4:OO PM, later on, it consumed a car wrecking yard on Fitzpatrick Street, a gym, and 80m x 80m factory.

When the firefighters arrived, the fire spread to two adjoining buildings, according to Fire and Rescue NSW spokeswoman. Within a minute the firefighter arrived, the blaze quickly became huge and there were "multiple explosions."

"The firefighters' focus is on stopping the fire from spreading to other factories," the spokeswoman told News.com.au.

Two fire crews got serious burns on their faces as they fight blaze, one of them also burnt on his arms. Both of them were taken to Royal North Shore Hospital with a police escort.

The pair were reportedly carrying a gas cylinder when it exploded in their faces. Meanwhile, a witness saw one of the men run naked as his clothes burnt away.

"The other man started to scream, 'Call two ambulance,' " the witness said in a report by SMH.

People from the area were forced to evacuate as fire crews fought the blaze. As of writing this article, the main cause of the fire is not yet known.

At 6:00 P.M., the fire had been contained, but was expected to continue burn for several hours, Daily Mail reports.

Roads in Revesby and south-west Sydney have been heavily affected by the fire, thus causing large delays.