Chicago Police are warning of a series of robberies over the last month in the South Shore neighborhood.
The suspect walks up to victims and announces a robbery while holding a handgun, according to a community alert from Area Central detectives.
Robberies have occurred in the 7300 and 7400 blocks of South Bennett and South Jeffrey avenues, according to police.
The suspect is described as a black man 18-30, between 5-foot-10 and 6-foot-3, and 140-195 pounds with dreadlocks and a dark complexion, police said.
Anyone with information should call detectives at (312) 747-8380.