A blaze broke out early Monday morning at a metal processing plant in the Miramar area in San Diego, CA, authorities said.
The non-injury blaze was reported around 2:30 a.m. at a commercial building on Kenamar Drive, just south of Trade Street, said a San Diego Fire-Rescue dispatch supervisor.
Crews were able to contain the blaze to a piece of machinery from inside the building, fire officials said.
The fire was contained to contents inside the building and firefighters knocked down the flames within 40 minutes, the dispatch supervisor said.
A hazardous materials team was requested to test the building for potentially dangerous chemicals that may have burned in the fire.
The cause of the blaze is under investigation.