US Marks 21st Anniversary of 9/11 Terror Attacks

Visitors look at U.S. flags on the 9/11 Memorial in New York, on Sept. 10, 2022, one day before the 21st anniversary of the attacks on the World Trade Center, Pentagon, and Shanksville, Pennsylvania. Yuki Iwamuri/AFP via Getty Images

NEW YORK—Americans are remembering 9/11 with moments of silence, readings of victims’ names, volunteer work, and other tributes 21 years after the deadliest terror attack on U.S. soil.

Victims’ relatives and dignitaries will convene Sunday at the places where hijacked jets crashed on Sept. 11, 2001—the World Trade Center in New York, the Pentagon, and a field in Pennsylvania.