The shooting happened around 9:33 p.m. Monday in the 500 block of Metropolitan Street in Aurora, police said.
Aurora police officers found a 17-year-old boy with a gunshot wound at the location.
The victim was taken to a hospital, where he was later pronounced dead, police said.
The boy's identity was not yet released by the Kane County Coroner's Office.
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No arrests were reported as Aurora police continue to investigate the deadly shooting.
No further information was immediately available.