The incident didn't result in any property damage. Alfaro said no one was injured during the incident. But Chicago Fire Department spokesman Jeff Lyle said one person was transported with unknown injuries to the University of Chicago's Comer Children's Hospital. The mother of two teenage boys who were hurt during a robbery at Navy Pier around the same time of the disturbance, said one son went to Comer by ambulance and the other took a cab to the hospital.