63-year-old woman dead after fire in Independence, Mo.

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INDEPENDENCE, Mo. -- A 63-year-old woman is dead after a fire in Independence, Mo., Thursday morning, Independence fire chief John Greene says.

An Independence fire dispatcher told FOX 4 they first received reports of smoke at a building in the 1300 block of West Lexington at 5:15 a.m.

Firefighters say all but one of the residents of the five-plex made it out safely.

The final resident was a woman whose door was locked. Firefighters said crews had to force their way in and found the woman next to a smoldering mattress.

First responders performed CPR, but the woman was pronounced dead at the scene.

Fire investigators say there was a working smoke detectors in the woman's apartment, but at lease one resident said she didn't hear anything.

"So when I came out to smoke I seen the smoke and actually when I got up I didn't hear a thing," resident Marilyn Cold said. "No fire alarms, nothing. I did smell the smoke once I opened my door. You can even smell it in my apartment. If I wouldn't have opened up the door I wouldn't even know there was a fire."

The cause of the fire is still under investigation, but an initial investigation appears that smoking in bed caused the fire.