From CFD Media on Twitter:

Still and box high rise 1212 north lake shore drive fire on 27

Plan one at the still and box 1212 LSD

2 11 1212 north LSD. Water on the fire on 27 one injured firefighter.

Update. Injured firefighter in good shape. We have lost all elevators. Water on fire main body of fire is out. Some hot spots.

Second injured firefighter. Details will follow. Smoke still heavy on 27

Mayday has been called at the 2 11

EMS PLAN TWO AT THE HIGHRISE 1212 LSD. Mayday for firefighter down. 

3 11 with mayday 1212 LSD. 

Firefighter critically injured. At 311 MAYDAY

Firefighter has been removed from building. Very critical to hospital.

THE MADAY IS SECURED. ONE CFD MEMBER VERY CRITICAL TO NORTHWESTERN

Crews requesting more hose lines firefighters walking hose up to 26 floor. Elevators out of service.