The Earthshot Prize charity has been reported to the Charity Commission following fresh Epstein files revelations.

It has emerged that Sultan Ahmed bin Sulayem, the chairman and chief executive of DP World, has been implicated in the Epstein scandal.

In April 2009, while he was still serving his 18-month sentence in a Palm Beach jail but allowed work release, Epstein emailed Mr Sulayem: "Where are you? are you ok , I loved the torture video."

DP World is a 'founding partner' of Earthshot and donated at least £1m to the charity. Sulayem and William have been seen together on more than one occasion, with Sulayem showing his direct support for the charity.

Questions are also raised about how William was allowed to use a government funded visit to the UAE to promote his pet project.

The CEO of campaign group Republic has lodged a formal complaint with the Charity Commission saying, "the seriousness of this matter requires a full and comprehensive investigation".

Graham Smith said today:

"William has lots of questions to answer about what he knew about Andrew and Epstein. And now he must explain his relationship with Sulayem."

"It is not credible to believe the Foreign Office, security services or other advisors were not aware of Sulayem's character and would have been able to advise accordingly."

"These files have been in the hands of US authorities for years. It's not believable that such intelligence would not have been shared."

"Earthshot has a duty to do due diligence, to ask questions about donors and where money is coming from. Did they do that here? If so did William over rule their better judgement?"

"In the context of this widening scandal we need answers."

"Andrew has been accused of using his official overseas trips to promote his business interests. It appears William has been using official trips to promote his charity interests."

"Earthshot is not a UK government project, so why was he using visits to the Middle East to promote the charity?"