Excerpts from NBC5Chicago.com:
According to the Schiller Park Fire Department, a person was reported to be in the Des Plaines River around 6:15 p.m. on Sunday evening. Schiller Park police officers arrived on the scene and saw a woman in distress near the water, and when they tried to rescue her, they broke through the ice and fell into the water.
Schiller Park firefighters were able to rescue all four officers and the woman from the frigid water, all of whom were taken to area hospitals.