The mastermind of the worst terrorist attack on American soil is dead, U.S. President Barack Obama announced late Sunday night, almost 10 years after the attacks that killed more than 3,000 people.
Osama bin Laden -- the longtime leader of al Qaeda -- was killed by U.S. forces in a mansion outside the Pakistani capital of Islamabad along with other family members, a senior U.S. official told CNN.
U.S. officials have taken custody of bin Laden's body, Obama said. No Americans were harmed in the operation, he added
U.S. diplomatic facilities around the world were placed on high alert following the announcement of bin Laden's death, a senior U.S. official said, and the U.S. State Department should be sending out a new "worldwide caution" for Americans shortly. Some fear al Qaeda supporters may try to retaliate against U.S. citizens or U.S. institutions.
Hundreds of people arrived at the White House late Sunday night and chanted, "USA! USA!" They then chanted, "Hey, hey, goodbye!" in reference to the demise of bin Laden and then spontaneously sang the national anthem.
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