It took 50 firefighters and more than an hour to extinguish a blaze that engulfed a number of RVs at an RV paint shop in Garden Grove, Calif., according to an Orange County Register reports

The fire caused more than $1 million worth of damage, said Capt. Thanh Nguyen of the Garden Grove Fire Department, and one firefighter was taken to a hospital for heat exhaustion.

Around 2 p.m., a fire was reported at Pacific RV Paint, where firefighters found three fully engulfed vehicles, according to the report.

It was unclear what started the blaze, but it spread from the vehicles into a nearby building, prompting more resources to be summoned to the scene.

A HazMat crew went to the scene after gasoline and propane tanks ruptured, adding fuel to the fire.

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