Factory fire in Revesby

A massive fire has engulfed two factories in an industrial zone in Sydney’s South West.

According to AAP, firefighters were called to the fire in Revesby soon after 11am this morning and have evacuated about 100 people from two industrial sites.

Nearly 20 crews are involved in the effort and ambulance officers have set up a command post to support firefighters and evacuees.

According to the Daily Telegraph, witnesses reported explosions and flames as high as 20m coming from the factories which are said to house flammable chemicals.

NSW Fire & Rescue Commissioner Greg Mullins told the SMH that efforts of fire fighters have been made difficult by water supply problems.

"We are having water supply problems – as you can see every time the water supply goes down, the fire goes up,” Mullins said.

"We are confident that we have stopped it from spreading however there are some flammable liquids, we are concerned about explosions."

Image: 7 News