The crash took place about 7:15 a.m. in the 2300-block of West Harrison Street, in Chicago's Tri-Taylor neighborhood, Chicago police said.
CPD said a 20-year-old woman, who was driving a sedan north, failed to yield to a southbound ambulance. The emergency vehicle had its lights and sirens on and was transporting a 53-year-old victim; she crashed into it, police said.
The ambulance then hit a parked commercial vehicle and a building.
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Three CFD members were taken to a local hospital with non-life threatening injuries, and a 53-year-old man was taken to Stroger Hospital with unknown injuries. He is now stable.
The 20-year-old woman refused treatment, and no citations had been issued later Thursday.
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