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Firefighters were able to gain the upper hand on an out-of-control three-alarm blaze that was burning at an auto repair shop in San Gabriel Wednesday morning.

(Credit: KTLA)
(Credit: KTLA)

The fire broke out shortly after 6 a.m. in the 500 block of West Ralph Street, according to a San Gabriel Fire Department fire dispatcher.

Stacks of tires were on top of the building, which was partially consumed by bright, orange flames, aerial video over the scene showed.

The blaze sent plumes of thick, black smoke up into the air that was visible for miles.

At least half a dozen firefighters were battling the flames from the roof as crews doused the blaze with water from the ground.

By 6:40 a.m., they appeared to have made significant progress in the firefight, with plumes of gray smoke visible amid several hotspots, Sky5 video showed.

It was not immediately clear what caused the fire.

No injuries were reported, the fire dispatcher stated.