NEW ROcHELLE - A New Rochelle man is alleging that he was assaulted by a New York City transit officer for taking cellphone video in the subway.

Shawn Thomas told an online news site that he was at the Utica Avenue subway station in Brooklyn this weekend, when he began shooting video of police detaining a man.

Thomas says a second officer noticed that he was shooting video and attempted to stop him. A heated verbal exchange allegedly followed and Thomas says the officer dragged him out of the station, forced him face down into the snow, and slammed his head into the pavement.

Thomas was charged with resisting arrest and released.

Police say they are investigating the incident.