Port Authority Trans-Hudson
Within minutes of Flight 11's impact, the Port Authority of New York and New Jersey Police Department (PAPD) began deploying officers from the Port Authority Trans-Hudson, bridges, tunnels, and airport commands. The PAPD commanding officer on the scene ordered a full evacuation of the North Tower at 9 a.m., about three minutes before Flight 175 hit the South Tower. At the same time, the PAPD's two most senior officers, superintendent Ferdinand Morrone and Chief James Romito, both arrived separately at the World Trade Center.