King Charles and QueenCamillahave shared a message of "enduring solidarity" with the American people,commemorating the victims of the September 11 terrorist attacks.
Their words of sympathy were inscribed on a handwritten note accompanying a bouquet of flowers,placed at the poignant memorial in New York.
The tribute honours the thousands who tragically lost their lives almost 25 years ago.
Penned in the King’s distinctive black script, the message read: "We honour the memory for those who so tragically lost their lives on 11th September 2001.
“We stand in enduring solidarity with the American people and in the face of their profound loss. Charles RCamilla."
Thememorial, known as Reflecting Absence, immortalises those who perished.
It features twin waterfall pools situated precisely where the World Trade Centre’s north and south towers once stood, brought down by terrorists flying passenger planes into the buildings.
Advertisement
They are nestled among skyscrapers in a space filled with dozens of swamp white oak trees, with the sound of cascading water creating a feeling of tranquillity away from bustling Manhattan.
The King and Queen laid the bouquet of white roses at the edge of the south pool during a sombre and poignant moment of reflection.
The couple were joined by media mogul and formerNew YorkmayorMichael Bloomberg, chairman of the 9/11 memorial museum, who took up office just a few months after the terrorist attack.
Surrounding the waterfalls, which plunge almost 10 metres into a large basin before the water drops again, six metres into a central void, are the names of the victims of the 9/11 attacks and the 1993 World Trade Centre bombing.
According to the memorial’s architect, Michael Arad, the pools represent “absence made visible” and although water flows into the voids, they can never be filled.
King Charles and QueenCamilladeparted the 9/11 memorial just before 2pm on Wednesday to head off to separate events.
The King will be in Harlem visiting a grassroots community organisation that works with children and young people impacted by food insecurity.
Meanwhile, the Queen will attend an event at theNew YorkPublic Library’s main branch to celebrate both countries’ shared love of literature.