On September 11, 2001, nearly 3,000 innocent people died in coordinated hijackings and attacks on the World Trade Center, the Pentagon, and United Airlines Flight 93. American Airlines Flight 11 was seized after 8:14 a.m. and flown into the North Tower at 8:46, striking floors 94 to 98; the tower later collapsed at 10:28, killing the crew, passengers, and more than 1,360 people. United Airlines Flight 175 was commandeered and flown into the South Tower at 9:03, tearing through floors 78 to 84; the South Tower collapsed at 10:05, and at least 599 people working there, along with crew and passengers, died. American Airlines Flight 77 was taken over just after 9:30 a.m. and crashed into the Pentagon, penetrating three of its five rings and killing nearly 200 people. United Airlines Flight 93 was hijacked at 9:32 after taking off from Newark; after learning of the other attacks, passengers and crew fought back, and the plane crashed near Shanksville, Pennsylvania, at 10:03 before the hijackers could reach their target, sparing hundreds if not thousands of lives. As airports, bridges, and tunnels closed and all U.S. air traffic was halted, civilians, airline and Pentagon employees, safety personnel, search and rescue animals, private ambulance services, the Port Authority, the New York City Police Department, and the Fire Department of New York were honored for their heroism. In February 2007, the Fire Department of New York gave Redondo Beach a section of steel beam recovered from the World Trade Center site, and it supports an armillary sundial on a black granite base whose five sides represent the Pentagon, while surrounding red grasses allude to the burning field near Shanksville.