St. Johns County firefighters put out an industrial fire that they say could have been "extremely dangerous" Saturday afternoon.

It happened at Hydro-Aluminum on 200 Riviera Blvd. Firefighters said they could see the smoke from several miles away.

They said there were chemicals in the building so everyone was evacuated.

"(Crews) made a quick fire attack using foam," said St. Johns County Fire Rescue spokesman Matthew Sara. "The fire was extinguished in approximately 30 minutes.  These actions quickly mitigated a fire which could have been an extremely dangerous situation."

The cause of the fire is still under investigation, but investigators believe a piece of equipment was overfilled with molten aluminum.

No one was hurt.