In each incident, a group of two or three men approach someone, pull out a gun and demand their property before taking off in a silver Ford Explorer SUV, Chicago police said.
The robberies happened in the afternoon and evening hours between Nov. 9 and Nov. 22 in:
- The 700 block of North Rush Street;
- The first block of East Chicago Avenue;
- The 2200 block of North Halsted Street; and
- The 1600 block of North La Salle Street.
Anyone with information is asked to call Area Three detectives at 312-744-8263.