CFD responded to the fire in the 500-block of West 60th Place in the city's Englewood neighborhood, and took at least one person to a local hospital in unknown condition.
The medical examiner's office said Monday that person died. He was identified as Carl Braddock.
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The cause of the fire is under investigation.
Neither Chicago police nor fire officials provided any additional information on the blaze, or if anyone else was injured.
This is a developing story; check back with ABC7 Chicago for updates.