From Chi-Town Fire Photos:

Here are some shots from a Full Still Monday evening @ 4637 s Riverside Ave in Lyons.Two fully-involved alley garages. In total, five lines were lead out to get a knock on it.
 
Companies on the Still
 
Lyons 1301, 1312, 1314, 1316,
Riverside 1601, 1629
Brookfield 401, 411
Stickney 1204, 1210
 
Companies on the Full Still
 
McCook 1401, 1416
Bedford Park 709, Batt 7