He boarded the train at the President Street station in Crown Heights, police said. View Full Caption NYPD

BROOKLYN — A man with "TEAM USA" tattooed on his forehead masturbated on a Manhattan-bound 2 train for more than 30 minutes Sunday, police said.

The man, who can be seen in a photo released by police, had his hands in his pants while staring at a 29-year-old woman who was also aboard the train about 4 p.m., NYPD officials said.

He boarded at the President Street station in Crown Heights, police said.

The woman he was watching managed to snap a photo of him before he fled the train more than 30 minutes later. He had not been arrested as of Tuesday morning, police said.

Anyone with information should contact Crime Stoppers at (800) 577-TIPS (8477).