NYC Remembers 9/11 Victims 23 Years After Terror Attacks That Altered The Nation

Wednesday is the 23rd year since the Sept. 11, 2001 terror attacks that forever changed New York City and the nation.

Nearly 3,000 people were killed when al-Qaida hijackers crashed four jetliners into the Twin Towers, the Pentagon, and a field in southwest Pennsylvania.

On this day every morning for the past 23 years, families who lost loved ones in the worst terror attack on American soil make the solemn trek to observe the six moments of silence, hear the reading of the names, and fulfill a sacred promise to never forget.

As years pass, more and more names are being read by children and young adults born after the attacks - as an older generation passes on the grave responsibility of remembering this day to a new generation.

Watch the solemn remembrance at the 9/11 Memorial & Museum streaming live on CBS News New York in the video player above.

Wednesday's ceremony honors the 2,983 victims killed in the 2001 attacks on the World Trade Center, the Pentagon, aboard Flight 93, and in the 1993 WTC bombing.

The 9/11 Memorial & Museum opened to family members at 8:00 a.m. before the commemoration began at 8:46 a.m.

A citywide moment of silence was held at 8:46 a.m. to mark the moment hijacked Flight 11 struck the North Tower. A second moment of silence was held at 9:03 a.m. to mark when hijacked Flight 175 struck the South Tower.

Another moment of silence followed at 9:37 a.m., marking when hijacked Flight 77 struck the Pentagon.

A moment of silence will be held at 9:59 a.m. to mark when the South Tower fell, then at 10:03 a.m. to mark when hijacked Flight 93 crashed in Shanksville, Pennsylvania, and then at 10:28 a.m. to mark when the North Tower fell.

The ceremony typically concludes around 12:30 p.m.

U.S. Leaders In Attendance

President Joe Biden and Vice President Kamala Harris are on hand for the ceremony in Lower Manhattan, along with former President Donald Trump and Republican vice presidential nominee JD Vance.

New York leaders, including Sen. Chuck Schumer, Gov. Kathy Hochul and former mayors Bill de Blasio, Michael Bloomberg and Rudy Giuliani, can also be seen in the crowd.

Mr. Biden and Harris both released statements beforehand, repeating the calls to "never forget."

"Never forget each of the 2,977 precious lives stolen from us when terrorists attacked our nation," Mr. Biden wrote. "Never forget their families who still bear the grief from that searing September morning. Never forget the heroic citizens and survivors who rushed to help their fellow Americans. And never forget that when faced with evil-and an enemy that sought to tear us apart-we endured."

"Today is a day of solemn remembrance as we mourn the souls we lost in a heinous terrorist attack on September 11, 2001. We stand in solidarity with their families and loved ones. We also honor the extraordinary heroism on display that fateful day by ordinary Americans helping their fellow Americans. We will never forget," Harris said in her statement.

The White House says the president and vice president will also visit the 9/11 sites in Shanksville, Pennsylvania and the Pentagon in Arlington, Virginia.