Authorities have arrested a man who allegedly attacked a 28-year-old woman on a Manhattan subway after an argument, throwing her off the train and choking her as they pulled into the station. The woman and the 37-year-old man were strangers to each other prior to the incident on the No. It's not clear what sparked the argument or what they were fighting about, but cops say the man pushed the woman off the train when it stopped at Lexington Avenue and East 125th Street. Watch NBC 4 free wherever you are WATCH HERE WATCH HEREHe was taken into custody at the scene and later charged with criminal obstruction of breathing. The woman was treated at the scene and is expected to be OK.