This from Brad Steinweg:

Here are the photos I got from Riverdale’s 2 alarm on 12/16/14. Traffic was terrible so I didn’t get there until after the 2nd alarm was called. I arrived shortly after a mayday was called, all firefighters were accounted for. I didn’t have my camera on me and had to use my phone, so I apologize for the quality.
Brad Steinweg photo

Brad Steinweg photo

Brad Steinweg photo

Brad Steinweg photo

Brad Steinweg photo

Brad Steinweg photo

Brad Steinweg photo

Brad Steinweg photo

Brad Steinweg photo

Brad Steinweg photo

Brad Steinweg photo

Brad Steinweg photo

Brad Steinweg photo

Brad Steinweg photo

Brad Steinweg photo

Brad Steinweg photo

From the Chicago Tribune:

Four firefighters suffered non-life-threatening injuries while battling an extra-alarm blaze at a condominium building Tuesday in Riverdale, officials said.

About 100 firefighters from departments [throughout] the south suburbs responded to the fire in a three-story building within the Riverwood Condominiums at 137th Street and Stewart Avenue.

The injured firefighters; two are with Riverdale, one is a Calumet Park firefighter and the fourth is with Markham.

… there was a “mayday” call … by a firefighter who ran out of air on the third floor.

thanks Dan