Police take person into custody after train incident at NYC's Grand Central Terminal

Police have taken one person into custody following an incident aboard a train at New York City's Grand Central Terminal. Aerial footage showed FDNY vehicles staging along Vanderbilt Avenue near 43rd and 44th Streets as the situation unfolded. Early reports indicated that the police activity may have forced some passengers to safely evacuate through the track tunnels, though large crowds were not seen exiting onto the street level.