were relocated and consolidated at the Chelsea Piers and the Staten Island Ferry Terminal. Throughout the early afternoon, the soundstages at the pier were separated into two areas, one for the more seriously injured and one for the walking wounded. On the acute side, multiple makeshift tables, each with a physician, nurse, and other health care workers, and non-emergency service volunteers, were set up for the arrival of mass casualties. Supplies, including equipment for airway and vascular control, were obtained from neighboring hospitals. Throughout the afternoon, local merchants arrived to donate food. Despite this, few patients arrived for treatment, the earliest at about 5 p.m., and were not seriously injured, being limited to smoke inhalation. An announcement was made around 6–7 p.m. that a second shift of providers would cover the evening shift, and that an area was being set up for the day personnel to sleep. Soon after, when it was realized that few would have survived the collapse and be brought to the piers, many decided to leave and the area was closed down. Police The New York City Police Department quickly responded with the Emergency Service Units (ESU) and other responders after the crash of American Airlines Flight 11 into the North Tower. The NYPD set up its incident command center at Church Street and Vesey Street, on the opposite side of the World Trade Center from where the FDNY was commanding its operations. NYPD helicopters were soon at the scene, reporting on the status of the burning buildings. When the buildings collapsed, 23 NYPD officers were killed, along with 37 Port Authority Police Department officers. The NYPD helped facilitate the evacuation of civilians out of Lower Manhattan, including approximately 5,000 civilians evacuated by the Harbor Unit to Staten Island and to New Jersey. In ensuing days, the police department worked alternating 12-hour shifts to help in the rescue and recovery efforts. Coast Guard, maritime industry, individual boat owners Immediately after the first attack, the captains and crews of a large number of local boats steamed into the attack zone to assist in evacuation. These ships had responded to a request from the U.S. Coast Guard to help evacuate those stranded on Manhattan Island. Others, such as the John J. Harvey, provided supplies and water, which became urgently needed after the Towers' collapse severed downtown water mains. The Coast Guard Auxiliary helped lead a massive maritime evacuation