The Ford Flat Rock Assembly Plant, where the famous Mustang and Fusion are built, caught fire on Tuesday night, forcing a partial evacuation of the complex.

Soon after the fire began, firefighters from three different cities brought it under control in under 40 minutes, say the Flat Rock police.

“We’ve got three departments there — Flat Rock, Woodhaven and Rockwood,” according to Lt. Kevin Murphy of Flat Rock police. No injuries were reported after the fire.

The cause of the fire is as of yet unclear — Lt. Kevin Murphy of Flat Rock police said that it began in some outside racks before spreading to a building. The fire was put out and didn’t halt work in other parts of the factory.

A Ford spokeswoman, Kelli Felker, said that the fire began around 7 p.m. and that employees in the surrounding area were immediately evacuated. She also said that the fire is currently under investigation.

Some employees captured the huge plumes of smoke with their camera phones, posting them online. The fire broke out just as workers were returning from a break, said employee Jeff Brown. It occurred near the plant’s dock area.

The plant, which used to be shared in a joint venture with Mazda that ended by 2012, has produced only Ford vehicles since then, one of which is the beloved and iconic Mustang, which debuted in 1964. On its first day on the market, more than 22,000 of them were snapped up right away. The plant, although not the original, is located south of Detroit and still produces the luxury vehicles.

More than 3,200 workers are employed at the plant, which is slated to begin building the 2017 Lincoln Continental this year.