Chicago Police Department investigators are actively searching for a suspect responsible for a violent assault on a Chicago Transit Authority Red Line train. The incident occurred on Tuesday evening, approximately at 10:40 p.m., near the Clark/Division stop located in the Old Town neighborhood of Chicago. According to police reports, the suspect allegedly grabbed a female passenger, pulled her from her position, and threw her to the ground. The force of the impact resulted in multiple fractured ribs for the victim. Authorities have released surveillance images depicting the suspect to the public in an effort to identify and locate the individual. The Chicago Police Department is urging anyone who recognizes the suspect or has information regarding the incident to come forward. Residents and commuters are asked to contact the Public Transportation Detectives directly at 312-745-4447. Alternatively, tips can be submitted anonymously through the CPDTIP.com portal, where individuals should reference case number JK423622. This case remains open and active as law enforcement continues to gather evidence and track the suspect's whereabouts. The investigation is ongoing, and police emphasize the importance of community assistance in bringing the individual responsible for this assault to justice. No further details regarding the suspect's identity or physical description have been released at this time beyond the provided surveillance imagery. The victim's condition has not been publicly disclosed in this report. Authorities continue to monitor the situation and provide updates as the investigation progresses.