A 16-year-old Chicago boy was shot and killed this morning after attempting to rob a 24-year-old man in the parking lot of a bank near Madison Street and Austin Boulevard in Oak Park, according to a news release from the Oak Park police department.

Police said that the 24-year-old man, who is from Chicago, has a valid conceal-carry permit.

"The pair apparently exchanged gunfire before the alleged robber reportedly entered a waiting car and fled into Chicago," the release stated.

Police said the teen was taken to Stroger Hospital, where he was pronounced dead. Oak Park spokesman David Powers said police are investigating how the teen got to Stroger Hospital.

Police said an off-duty Chicago police officer detained the 24-year-old man, who was being questioned by Oak Park police investigators. Police said the investigation is continuing and "many details remain to be determined."

Anyone with information is urged to call 708-386-3800. Anonymous tips can be left at 708-434-1636 or online at www.oak-park.us/crimetip.

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