This from Rob Groszewski:

From a working Still Alarm & Level 1 Hazmat at 110th Place and Loomis around 11:30 Thursday morning (3/22/18). Some type of explosion occurred, partial collapse on C & D sides. Companies were defensive until Peoples Gas could secure the area. Sq-5 snorkel and several hand lines were in use. Neighbors report the building was vacant.

Chicago FD Truck 24 at work

Rob Groszewski photo

Chicago FD Squad 5A at work

Rob Groszewski photo

Chicago FD Squad 5A at work

Rob Groszewski photo

Chicago FD Squad 5A at work

Rob Groszewski photo

Chicago FD Squad 5A at work

Rob Groszewski photo

Chicago FD Squad 5A at work

Rob Groszewski photo

Chicago FD Squad 5A at work

Rob Groszewski photo