National September 11 Memorial &amp; Museum
The National September 11 Memorial & Museum (also known as the 9/11 Memorial & Museum) is a memorial and museum in New York City commemorating the September 11, 2001 attacks, which killed 2,977 people, and the 1993 World Trade Center bombing, which killed six. The memorial is located at the World Trade Center site, the former location of the Twin Towers that were destroyed during the September 11 attacks. It is operated by a non-profit institution whose mission is to raise funds for, program, and operate the memorial and museum at the World Trade Center site.
Emergency workers killed in the September 11 attacks
Several New York City Police Department (NYPD) officers saw Flight 11's impact with the North Tower and immediately reported it to dispatchers. Ten minutes after Flight 11's impact and seven minutes before Flight 175's impact, the NYPD chief of department was en route to the scene and raised the police mobilization to level 4, thereby sending around 22 lieutenants, 100 sergeants, and 800 police officers to the World Trade Center. NYPD personnel were primarily responsible for assisting in evacuations and helping injured civilians.
Three police helicopters were also deployed to report on conditions and assess the feasibility of a rooftop landing or of special rescue operations. Once Flight 175 had struck the South Tower, another level 4 mobilization was ordered, bringing to almost 2,000 the number of NYPD personnel at the scene. Some were ordered to enter the World Trade Center to assist with the FDNY's evacuations.