Americans marked the 25th anniversary of the September 11 attacks on Friday with ceremonies in New York, the Pentagon and Shanksville, Pennsylvania, remembering the nearly 3,000 people killed. The New York ceremony at Ground Zero began at 8:46 a.m. ET with a moment of silence, followed by reading the names of the dead. The anniversary also highlighted the long toll of 9/11-related illnesses and the attacks' lasting impact on U.S. politics and security.

A child holds up a photograph during the ceremony commemorating the 25th anniversary of the Sept. 11, 2001 attacks at the National September 11 Memorial in New York on Friday, Sept. 11. The New York Times via AP, Pool-Yonhap

NEW YORK/WASHINGTON — Americans marked the 25th anniversary of the September 11 attacks on Friday with sorrow and somber reflection, honoring the nearly 3,000 people killed when hijacked planes slammed into the World Trade Center, the Pentagon and a Pennsylvania field in a shocking attack that reverberates to this day.

In New York, family members of the victims, many carrying pictures of their loved ones, joined Vice President JD Vance and four former U.S. presidents at Ground Zero in Lower Manhattan. The ceremony began, as always, at 8:46 a.m. ET (1246 GMT) with a moment of silence to mark the instant when American Airlines Flight 11 struck the World Trade Center's North Tower in what would become the deadliest attack ever on U.S. soil.