From CBSChicago:

One minor injury was reported after an extra-alarm fire [Thursday night] at a senior citizens’ apartment complex in Forest Park.

Firefighters responded to the fire around 11 p.m. at the Linden House Apartments, a five-story housing complex for seniors in the 1000 block of Des Plaines Avenue. Approximately 60 residents were evacuated because of the blaze, and many had already begun evacuating before firefighters arrived.

Here is an audio clip from the event: