Massive fire engulfs building in Harvey

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Firefighters battled an intense blaze around 3am Thursday June 21, 2018 in the 15800 block of South Center Ave. | Justin Jackson/ Sun-Times

A building was engulfed in flames early Thursday in south suburban Harvey.

The fire broke out about 2:15 a.m. in a one-story commercial building in the 15900 block of South Fisk Avenue.

Part of the building collapsed about 3:30 a.m.

It was unclear if anyone was inside the building at the time of the fire. The Harvey Fire Department could not be immediately reached for comment.