People cheer and wave US flags outside the White House as President Barack Obama delivers remarks to the nation on the death of Al-Qaida leader Osama Bin Laden, in Washington May 1, 2011. [Photo/Agencies]

NEW YORK - Hundreds of people were gathering in New York City at the World Trade Center site, where the twin towers fell on September 11 nearly 10 years ago, hours after President Barack Obama announced that Osama bin Laden was killed. Live report 

Many were waving American flags or taking pictures early Monday. The group broke into spontaneous, jubilant cheers and song, including a rendition of "I'm Proud to be an American."

Farther uptown in Times Square, dozens stood together on the clear spring night, making calls and snapping photos. An FDNY SUV drove by and flashed its lights and sounded its siren, and the crowd broke into applause.

And in Washington, D.C., a large group gathered in front of the White House, chanting "USA! USA!" and waving American flags. Among them was legislative aide Will Ditto. He called bin Laden's death "huge."