Three people were robbed in the span of two weeks in Parkway Gardens on the South Side.
In each incident, someone approached the victim on a street, sidewalk or parking garage and produced a gun before demanding their property, Chicago police said.
The first robbery happened about 9:10 p.m. Jan. 12 in the 6500 block of South King Drive, police said. The other two robberies happened between 1:45 p.m. and 2:15 p.m. Jan. 22 in the 6300 and 6400 blocks of South King Drive.
Two males between 16 and 25 years old were suspected in at least two of the robberies, police said. They were wearing a mask in one instance.
The suspected robber in the other incident was a female, police said.
Anyone with information is asked to call Area Central detectives at 312-747-8380.