Authorities say an off-duty New York City police officer who displayed a handgun while trying to quiet unruly passengers on a train has been arrested and suspended without pay.

Metropolitan Transportation Authority police say Officer David Hendrick on Sunday night was riding a Long Island Rail Road commuter train to Ronkonkoma (ron-KONK'-uh-muh), about 50 miles east of Manhattan. They say he showed his gun to quiet four passengers who had attended a New York Rangers hockey game.

Hendrick pleaded not guilty Monday in Hempstead to a felony charge of criminal possession of a weapon and a lesser charge of menacing. He was held on $2,500 bond or $1,000 cash.

Defense attorney Steve Worth has refused to comment.

Hendrick joined the New York Police Department 16 years ago. He works on a traffic task force.