Woman at Ashmont station stabbed in the chest with a ballpoint pen, possibly by a man with dry cleaning

Boston and Transit police are investigating a stabbing around 9 a.m. at the Ashmont Red Line station in which a woman was attacked with a pen. The suspect is described as a black male, 35-40, with a full beard, wearing blue jeans, black sneakers and possibly a burgundy shirt, last seen walking inbound on Dot. Ave. carrying a jacket in a plastic bag.