8:42 a.m. ET First plane slams into the north tower of the World Trade Center
9:00 a.m.ET Approximately 18 minutes later, a second plane slams into the south tower of the World Trade Center.
The planes are later identified as American Airlines Flight 11, a Boeing 767 with 81 passengers, nine flight attendants and two pilots, hijacked after takeoff from Boston en route to Los Angeles, and American Airlines Flight 77, a Boeing 757 en route from Dulles Airport near Washington, carrying 58 passengers, four flight attendants and two pilots.
9:24 a.m. ET Bush calls today’s plane crashes at the World Trade Center “an apparent terrorist attack on our country.”
9:32 a.m. ET Stock Exchange closed
9:40 a.m. ET The FAA orders the entire nationwide air traffic system shut down. All flights at U.S. airports are stopped.
9:43 a.m. ET An aircraft crashes on a helicopter landing pad near the Pentagon. A portion of one side of the five-sided structure collapses
9:45 a.m.ET The White House is evacuated.
10:05 a.m.ET The south tower of the World Trade Center collapses in a plume of ash and debris.
10:29 a.m. ET United Airlines Flight 93, a Boeing 757 en route from Newark, N.J., to San Francisco, crashes just north of the Somerset County Airport, about 80 miles southeast of Pittsburgh. The plane was carrying 38 passengers, two pilots and five flight attendants.
10:28 a.m.ET Two World Trade Center, the south
11:26 p.m. ET United Airlines expresses concern about the fate of another plane, Flight 175, a Boeing 767 bound from Boston to Los Angeles.
12:15 p.m. E.T. The United States closes its border with Canada and Mexico.
1:02 p.m. ET New York Mayor Rudy Guiliani orders an evacuation of Manhattan south of Canal Street.