It happened on Eastern Parkway in the Prospect Heights section just after 5 a.m.
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The fire broke out on the top floor of the six-story building.
Firefighters were able to quickly extinguish the fire.
Newscopter 7 was over the scene and Citizen App captured video of the flames.
The condition of the injured person is not yet known.
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The cause of the fire is under investigation.
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