The Duke and Duchess of Cambridge visited the US Embassy on Tuesday to sign a book of condolences for victims of the Orlando nightclub shooting. The royals looked sombre as they were greeted by the US Ambassador in London, Matthew Barzun, before adding their comments.
After signing, TRH spoke with reps from the US embassy's LBGT network GLIFAA. As a mark of respect Kate wore a knee-length black and white dress teamed with a cropped black blazer.
Their message read: "With our deepest condolences and with our thoughts and prayers to all those affected. William, Catherine."
On Sunday 49 people were shot dead at a gay nightclub in Orlando, in what American authorities are calling the worst terror attack since 9/11.
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Prince William and Kate sign the book of condolences at the US embassy
Along with the 49 fatalities it's thought that at least 53 people were left injured from the attack by Omar Mateen. President Obama said of the horrific events on Sunday: "We know enough to say that this was an act of terror and act of hate."
Kate and William's visit to the US Embassy comes after the Queen paid tribute to the victims on Monday. Her Majesty said: "Prince Phillip and I have been shocked by the events in Orlando. Our thoughts and prayers are with all those who have been affected."
Queen Letizia and King Felipe VI of Spain have also paid their respects. Together they visited the US Embassy in Madrid to sign the book of condolences in the presence of the US Ambassador in Spain, James Costos.
Queen Letizia and King Felipe VI greet the US ambassador in Spain
According to Spanish newspaper La Vanguardia, Queen Letizia has said the attack was one "against all principles" and such tragic violence will only be combatted by "working together".
On Monday the world united in vigils, with thousands gathering in cities across America, and in the UK, Germany, Australia and France.