Liz Truss has reportedly blocked the new King from appearing at the COP27 climate conference in Egypt next month.
World leaders are set to descend on Sharm El Sheikh, Egypt in November for the annual gathering of nations to discuss the global environment.
During his time as the Prince of Wales, Charles spoke about climate concerns and his desire to create a sustainable world. It was thought King Charles III would deliver a speech at the conference, however it's believed the Prime Minister rejected the idea.
A senior royal insider told The Times : "It is no mystery that the King was invited to go there. He had to think very carefully about what steps to take for his first overseas tour, and he is not going to be attending Cop."
It is said the choice to stop the King attending the meeting was due to Government advice, although Charles will find other means to support the event.
The COP events are also know as the United Nations Climate Change Conference this year runs between November 6 and 18. At last year's COP26 in Glasgow the then-Prince of Wales gave a speech before urging world leaders to unite together and tackle climate change.
Reacting to the report Levelling Up Secretary Simon Clarke said claims that Truss "ordered" the King to stay away are "simply not true".
He said the decision that the King should not attend the international gathering in Egypt had been taken "consensually" between the Government and the Palace.
"It's been clear this is a decision that has been made consensually between the King and the Government," he told Times Radio.
"That is a decision that has been made amicably, as far as I am aware, between the Palace and the Government. The suggestions this morning that he was ordered to stay away are simply not true.
"I think it is very different when you are the host country for a major event like COP to have the head of state involved as opposed to the head of state going to what is an event being hosted in Egypt.
"It is the normal course of matters that this would be handled by the Government rather than by the monarchy."
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