This from Erik Haak:

At 0920 hrs, Sunday morning, Engine 62 reported a working fire at 11259 S. Michigan Avenue.  Battalion 22 reported fire in the basement which eventually made it up through the second floor and into the cockloft of the 2-story apartment over commercial structure.  Truck 62 was RIT.  All photos credited to Eric Haak.

 

Chicago FD engine pumping at fire scene

Engine 62 had lines off. Erik Haak photo

Chicago FD engine pumping at fire scene

Engine 75 had a hydrant. Erik Haak photo

Chicago FD Crimson aerial

CFD Truck 62 was parked down the block. Erik Haak photo

Chicago firefighters on the roof with smoke

Firefighters vent the roof. Erik Haak photo