September 11, 2001 at 5:52 PM EST - Updated July 12 at 8:05 AM
The United States has been a target of terrorist attacks for the past 20-years. Up until today, only a handful happened on domestic soil, including a bomb at the World Trade Center.
Oct. 12, 2000: Terrorist bombing kills 17 U.S. sailors aboard the USS Cole as it refueled in Yemen's port of Aden. The United States labels Saudi exile Osama bin Laden as the prime suspect.
Aug. 7, 1998: Car bombs explode outside U.S. embassies in Nairobi, Kenya, and Dar es Salaam, Tanzania, within minutes of each other, killing 224 people and wounding thousands. Bin Laden is again blamed.
June 25, 1996: Truck bomb explodes outside the Khobar Towers in Dharan, Saudi Arabia, killing 19 American servicemen and wounding hundreds of civilians. Members of a little-known Saudi militant group, Hezbollah, were indicted for the attack.
Nov. 13, 1995: Car bomb detonates at a U.S. military headquarters in Riyadh, Saudi Arabia, killing five American service personnel.
April 19, 1995: Bomb rips through the Alfred P. Murrah Federal Building in Oklahoma City, killing 168 and wounding more than 500. Former U.S. soldier Timothy McVeigh was convicted of carrying out the attack, and executed earlier this year.
Feb. 26, 1993: A bomb explodes in a parking garage below the World Trade Center in New York, killing six people and wounding thousands. Six Islamic militants were convicted in the bombing and sentenced to life in prison.
Dec. 21, 1988: Pan Am Boeing 747 explodes over Lockerbie, Scotland, on a flight from London to New York, killing 270 people, including residents of the town.
Sept. 5, 1986: Hijackers seize Pan Am jumbo jet carrying 358 people at Karachi airport. Twenty people died when security forces storm the plane.
Oct. 8, 1985: Crippled American Jew Leon Klinghoffer is killed by Palestinian militants who had seized the Italian cruise liner Achille Lauro.
June 14, 1985: Shiite Muslim gunmen seize a TWA Boeing 727, forcing it to Beirut, Lebanon while demanding the release of 700 Arabs held by Israel. A U.S. Navy diver died and 39 Americans were held hostage until July 1.
Watch tonight's Ten o'clock News for a full report from Jack Atherton.