More photos from Matthew Sosnowski of the Chicago Still & Box Alarm fire, 3-21-17 

flames from attic at building fire

Matthew Sosnowski photo

Chicago FD Truck 41

Matthew Sosnowski photo

firefighters climb aerial ladder at fire

Matthew Sosnowski photo

firefighter prepares saw at fire scene

Matthew Sosnowski photo

Chicago FD Comm Van 275

Matthew Sosnowski photo

fire scene with smoke

Matthew Sosnowski photo

Chicago FD Engine 123

Matthew Sosnowski photo

Chicago FD Engine 88

Matthew Sosnowski photo

firefighters pose after battling a fire

Matthew Sosnowski photo

Chicago FD Squad 5

Matthew Sosnowski photo