The attack happened around 3:44 p.m. in the 5400 block of South Wells Street, Chicago police said.
The victim, a 26-year-old man, was involved in a road-rage incident with another driver, an unknown male offender, CPD said. The offender had a bat and used it to strike the victim multiple times.
The man was taken to a hospital, where he was later pronounced dead, police said. His identity was not yet known.
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The offender fled the scene in a dark SUV. No arrests have been made.
No further information was immediately available as Chicago police continue to investigate.
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