A fire that broke out around 6:40 a.m. at an Englewood home spread to two neighboring houses and displaced 27 residents.
It took 110 firefighters to extinguish the blaze on the 7200 block of South Green Street, District Chief Jeffrey Springer said. All three homes were occupied, but the residents were able to safely evacuate, Springer said.
One firefighter was taken from the scene to Northwestern Memorial Hospital in fair-to-serious condition. The fire was under control by 8 a.m.
The Red Cross provided temporary shelter to displaced residents.
The fire's cause is still under investigation.