Excerpts from cbsnewschicago.com:

Five people, including three members of the Chicago Fire Department were injured when an ambulance collided with a car and crashed into a pole at the intersection of Jackson and Hamlin Boulevards, along the western border of Garfield Park on the West Side.

The three CFD members were taken to Rush University Medical Center in fair to serious condition. The patient in the ambulance was taken to Mount Sinai Hospital in fair to serious condition. The woman driving the car involved in the crash was taken to Stroger Hospital in serious to critical condition.

thanks Rob