A timeline of terror: The events of 9/11
FOUR AIRLINERS HIJACKED
7:59 a.m. American Airlines Boeing 767 Flight 11 leaves Boston for Los Angeles; 87 people aboard
8:14 a.m. United Airlines Boeing 767 Flight 175 leaves Boston for Los Angeles; 60 people aboard
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8:20 a.m. American Airlines Boeing 757 Flight 77 leaves Washington's Dulles Airport for Los Angeles; 59 people aboard
8:42 a.m. United Airlines Boeing 757 Flight 93 leaves Newark, N.J., for San Francisco; 40 people aboard
NEW YORK ATTACKED
8:46 a.m. American Airlines Flight 11 crashes into World Trade Center north tower
9:03 a.m. United Airlines Flight 175 crashes into World Trade Center south tower
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9:21 a.m. All New York area bridges, tunnels closed
9:30 a.m. Visiting Emma E. Booker Elementary School in Sarasota, Fla., President George W. Bush announces United States under "apparent terrorist attack"
WASHINGTON TARGETED
9:37 a.m. American Airlines Flight 77 crashes into Pentagon
9:42 a.m. FAA stops all takeoffs, landings at U.S. airports; some international flights diverted to Canada
9:45 a.m. U.S. Capitol, White House evacuated
9:55 a.m. Bush leaves for Barksdale AFB, La., on Air Force One; escorted by six fighter jets
9:57 a.m. United Airlines Flight 93 passengers struggle with hijackers over western Pennsylvania
BUILDINGS COLLAPSE
9:59 a.m. World Trade Center south tower collapses
10 a.m. U.S. financial markets close, begin longest shutdown since World War I
10:03 a.m. United Airlines Flight 93 crashes near Shanksville in rural Somerset County, Pa., failing to reach its hijackers' intended target
10:10 a.m. Side of Pentagon collapses
10:28 a.m. World Trade Center north tower collapses
SHOCKED NATION REACTS
11:02 a.m. NYC Mayor Rudolph Giuliani orders evacuation of area south of Canal St.
12:30 p.m. 50 flights still in U.S. airspace
1:04 p.m. Bush announces U.S. military on high alert
1:44 p.m. Pentagon says five frigates and guided missile destroyers, two aircraft carriers leaving Norfolk, Va., to protect New York, Washington
1:48 p.m. Bush leaves Barksdale for Offutt AFB, Neb.; Air Force jets begin 24-hour flights over major cities
INFORMATION
4 p.m. Officials say Osama bin Laden involved in attacks
4:30 p.m. Bush leaves Offutt for Andrews AFB, Md.
5:20 p.m. Evacuated 47-story building in World Trade Center complex collapses
5:30 p.m. Officials say target of Flight 93 was White House, U.S. Capitol or Camp David in Maryland
6:54 p.m. Bush arrives at White House on Marine One helicopter
8:30 p.m. Bush addresses nation
Sources: AP, World Trade Center, U.S. Defense Department, Washington Post, CNN, National Commission on Terrorist Attacks Upon the United States
This story was originally published September 11, 2016 at 8:19 AM with the headline "A timeline of terror: The events of 9/11."