CHICAGO — An investigation is underway after a man was critically injured by a driver who police say fled from a traffic stop on the South Side on Friday afternoon. 

According to police, it unfolded just after 3:15 p.m. in the 700 block of West 87th Street in Auburn Gresham.

CPD officials say officers in a marked squad car attempted to stop a driver in a Chevy for a traffic infraction, but as they approached the vehicle on foot, the driver fled, hitting a bicyclist during their getaway.

Officers say the driver fled the scene and headed eastbound.

The cyclist, a 37-year-old man, suffered critical injuries in the crash and was taken to the hospital.

Officers say no arrests have been made and an investigation into the crash is now underway. 

Anyone with information on the incident is asked to contact the CPD Major Accident Investigation Unit at 312-745-4521 or dial 911. 

Tips for police can also be filed at CPDtip.com. Tips can be left anonymously.