The shooting happened around 3:19 p.m. in the 4000 block of West Chicago Avenue in Humboldt Park, Chicago police said.
An unknown male, who age was not known, was in an altercation with a group of males while on a CTA bus at the location, police said. The altercation turned physical, and a firearm went off.
Two people were shot, a 15-year-old boy and an 18-year-old man, CPD said. They were both taken to a hospital and were reported to be in fair condition.
No arrests have been made as Chicago police continue to investigate.
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