Authorities are looking for a man who punched a woman in the face without provocation on a northbound A train in Brooklyn Heights last month.
Police say the man attacked at random as the train pulled into the Jay Street station Nov. 23, then fled.
The woman suffered swelling and pain to her head but refused medical attention at the scene.
Anyone with information about the suspect is asked to call Crime Stoppers at 1-800-577-TIPS.
