A witness notified police that they reportedly found a human head inside a box on a sidewalk on Chicago's West Side Thursday evening, Fox 32 Chicago first reported.
It happened just before 6 p.m. on Thursday when officers were dispatched to the 2600 block of West Taylor Street.
The witness told officers they were walking on the sidewalk when they discovered a box containing the victim's remains, Chicago Police told Fox 32.
Police said it is unclear what led to the victim's death and that an investigation is ongoing.
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No further details were immediately available.
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The Cook County Medical Examiner's Office also confirmed it has been notified about the human remains, Fox 32 reported.
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Anyone with more information about this case is encouraged to contact CPD Area Four Detectives at 312-746-8251.
Fox News Digital reached out to the Chicago Police Department for comment but did not immediately receive a response.