By Mary Chappell

Chicago (CBS) — Detectives are seeking help in identifying two men accused of robbing a man on a CTA Blue Line train last week.

Police said a 22-year-old man was riding the train Sept. 1 at about 10:15 a.m. in the 0-100 Block of West Lake Street when he was approached by two men who pulled out a gun and took his things before fleeing. The victim wasn’t injured.

Police have released surveillance images of the robbers, and asked anyone with information to contact the Area One Bureau of Detectives at (312) 745-4443.