Chicago police are hoping the public will help them identify the group that attacked and robbed a man at the Grand Red Line station last week.
It happened around 5 p.m. on Wednesday, June 28.
Police said the victim was walking on the platform when the group pulled him into a stairwell and beat him up. They took his wallet and fled the scene.
Detectives released CTA surveillance pictures of the group on Tuesday. They said the suspects are Black males between 20 and 40 years old.
Anyone with information about them can contact investigators at 312-745-4706 about case number JG-319859.