CPD said those robberies happened in the 5400 block of South Ingleside, the 4800 block of South Honore and the 5100 block of South Drexel.
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Police said four people got out of a dark sedan and robbed three people just walking on the sidewalk at gunpoint just after 5:30 p.m. Saturday.
The suspects stole the victims' phones and wallets before taking off in the dark sedan.
SEE ALSO | 3 University of Chicago students robbed near Hyde Park campus, school says
CPD said they tracked down what could be that dark sedan to the 6600 block of South May, using the help of a CPD helicopter. CPD said that black sedan the suspects were using was stolen.
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All of this comes after surveillance video just last week showed one of those brazen armed robberies on the University of Chicago campus. It's also unclear whether the suspects in custody on Sunday are the same people wanted for that armed robbery caught on camera.
The university says they are increasing police patrols to help keep students safe.
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