CHICAGO (CBS) — A 50-year-old man was found dead in a burning building Saturday morning in the Chatham neighborhood, and investigators believe the fire was the result of arson.

The fire started shortly before 3 a.m. on the second floor of an apartment building at 83rd and Drexel, police and fire officials said.

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After firefighters extinguished the flames, they found a 50-year-old man in a third-floor apartment. He was taken to the University of Chicago Medical Center in critical condition, and was later pronounced dead.

Police said investigators determined the fire was arson.

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Tenants said, before the fire broke out, they heard a loud fight and a chaotic night.

“I was coming out of my sleep from hearing the music that woke me up, and hearing the doors slam; consistently, one, two slam. And then, all of a sudden, I had heard the fire alarms going off,” said one woman who asked to remain anonymous.

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No other injuries were reported, but two adults who live in the building were left homeless. The Red Cross was providing assistance to those tenants.