From CFD Media on Twitter:

0558: S&B corner of 79TH and Vincennes, all companies defensive, No injuries reported at this time, Human Services requested, update to follow 4-1-8.

building fire in Chicago

Chicago Fire Department Media photo

0629: 79TH & Vincennes upgraded to a 2-11. One (1) FF transport (Green) minor. 4-1-8.

0647: 2 11. 79 and Vincennes. Store with apts. Fire extending to second building.

massive smoke and flames from building fire in Chicago

Chicago Fire Department Media photo

video clip

0733: Now a level 1 hazmat at the 2 11. Now an EMS plan 1. Precautionary

0738: Extreme smoke conditions. Two fire fighters injured. Not serious

video clip

0744 Now a 3 11. Corner 7900 Vincennes

massive smoke at Chicago building fire

Chicago Fire Department Media photo

0835: Good progress on 3 11 on Vincennes. Fire began in store on first floor heavy bars slowed original entry by CFD. EMS plan 1 still in place as precaution. As well as level 1 hazmat response