The fire took place around 8 a.m., Wednesday, April 21 in the 2000 block of Main Street in Bridgeport, said Scott Appleby, director of emergency management.
The Bridgeport Fire Department responded to the fire and found heavy fire on the third floor of the unit, he said.
The person, who later died, was rescued from the building and taken to the hospital to be treated for unknown injuries, Appleby said.
The Red Cross responded to help those impacted by the blaze.
The cause of the fire is under investigation.
This is a developing story. Check back to Daily Voice for updates.
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