EMS personnel were in disarray after the collapse of the South Tower at 9:59 a.m. Following the collapse of the North Tower at 10:28 a.m., EMS commanders regrouped on the North End of Battery Park City, at the Embassy Suites Hotel. Around 11:00 a.m., EMS triage centers 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.