President Joe Biden, Vice President Kamala Harris and former President Donald Trump made a rare joint appearance on Wednesday at the New York City site that marks the Sept. 11 plane attacks in 2001 that killed nearly 3,000 people, Paralel.Az reports citing Reuters.

Harris, the Democratic presidential candidate and Trump, her Republican rival in the Nov. 5 U.S. presidential election, shook hands and exchanged a few words despite their contentious debate the night before, then lined up for the commemoration. Trump's running mate, Senator JD Vance, also attended.

There were no formal remarks at the "ground zero" site where planes brought down the World Trade Center's twin towers. Instead, wives, husbands, sisters, brothers and grandchildren read out the names of family members killed 23 years ago.

The annual rite marks the suicide attacks by al Qaeda Islamist militants who flew two planes into the World Trade Center and another into the Pentagon. A fourth plane went down in a Pennsylvania field after passengers stormed the cockpit.