This is the moment crowds gather outside Kensington Palace ahead of the unveiling of a statue of Diana on what would have been her 60th birthday.

The clip was shared on Twitter by vlogger Paul Brown with the message: “Waiting for William and Harry to unveil Diana statue at Kensington Palace, on what would have been her 60th birthday… I hear some fans were camping outside.”

In the video, flags and images of Diana, Princess of Wales, are seen hanging from the gates of Kensington Palace as “Princess Di” fans wait outside.

The camera then pans to a group of people sitting in foldaway chairs as Brown says: “Some said they were camping here last night.”

Prince William and Harry will meet later to unveil the statue they commissioned in 2017.

At the time, they said they hope the monument would help visitors “reflect on her life and her legacy”.

The statue will be unveiled in the redesigned Sunken Garden.

The unveiling marks the first time the brothers have appeared together since the Prince Philip’s funeral in April.

The Duke of Sussex travelled to the UK from Los Angeles last Friday to complete a period of isolation before attending the unveiling.

Kensington Palace previously said in a statement: “In addition to close family of Diana, Princess of Wales, members of the statue committee, the sculptor Ian Rank-Broadley, and garden designer, Pip Morrison, will also be present.”