MBTA Transit Police said the incident happened around 11:30 p.m. on Oct. 2.
Transit police are looking for a man who allegedly exposed himself to a young woman while on a Red Line train, the department said.
Transit Police posted a photo of the suspect on Monday, saying he “exposed himself and committed a lewd act” while sitting across from an 18-year-old woman. According to the post, the incident happened around 11:30 p.m. on Oct. 2 between the Quincy and Wollaston stops.
Police asked anyone who has information about the man or the incident to contact them at (617)222-1050.
Eva Levin is a general assignment co-op for Boston.com. She covers breaking and local news in Boston and beyond.