A New York City police officer was shot and killed and another was wounded in a shooting in Midtown Manhattan on Monday evening, sources say.At least two civilians were also wounded, including one critically,

A gunman was dead Monday following a shooting in central Manhattan, New York police said, amid reports a police officer was killed and several civilians struck, provoking a lockdown in the area.Fox News,

The incident occurred in an office building located at 345 Park Ave., sources said. After apparently barricading himself on the 33rd floor, the suspect was found dead from what is believed to be a self-inflicted gunshot wound, sources added. Surveillance footage captured the suspect outside the building armed with a long gun, according to sources.