Excerpts from Chicago.cbslocal.com:

Two people died after a fire in the Back of the Yards neighborhood after a fire broke out in the basement of a building located at 1434 West Garfield Boulevard just before 6 a.m. Two victims were taken to the University of Chicago Medical Center in critical condition. Fire officials confirmed the two victims, a man in his 60s and a woman in her 50s, have both died.

A firefighter was treated for minor injuries.

Officials said there were no working smoke detectors. The cause of the fire is under investigation.

From CFD Media on Twitter:

Working fire/EMSPLAN 1 at 1434 W Garfield. Fire in basement. Fire is out. 2 transported to UofC critical condition.

1434 west Garfield. Both victims are deceased. A man and woman. No working smoke detectors. Cause under investigation.

CFD will distribute materials in the area of the fatal fire at 1434 Garfield at 10 am. Victims are a woman in her 50’s. And a man in his 60’s.