PICO RIVERA, Los Angeles (AP) — Fire has engulfed a three-story apartment building in a Los Angeles suburb.

The Los Angeles County Fire Department says about 100 firefighters are battling a blaze in the three-story building in Pico Rivera.

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The fire erupted in a vacant apartment at around 3:30 p.m. Thursday. The complex has been evacuated.

Fire officials say one person — not a firefighter — has been injured but there are no other details.

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Enormous flames have engulfed most of the roof, and the fire is sending up a thick cloud of black smoke.

Fire officials say the apartments share a common attic, which is helping spread the flames.

The Fire Department ordered all firefighters out of the complex because the roof was collapsing.

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Instead, crews are directing streams of water from outside the building.