The robberies happened on January 3 between 5:30 a.m. and 7 a.m., police said.
In each incident, three men jumped out of a stolen vehicle and demanded property from the victims at gunpoint.
Police said they got away in the same vehicle.
The suspects were described to be 17 to 23-years-old and were wearing all black clothing and ski masks.
The crimes happened at the following locations:
- 200-block of West Randolph Street
- 700-block of North Mat Street
- 100-block of North Western Avenue
Nobody is in custody.
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