Doctors have confirmed they are concerned for the Queen's health and have placed her under medical supervision.
A short statement from Buckingham Palace at 12.40pm on September 8, read: "Following further evaluation this morning, The Queen’s doctors are concerned for Her Majesty’s health and have recommended she remain under medical supervision. The Queen remains comfortable and at Balmoral."
Heir to the throne, Prince Charles and Duchess of Cornwall are with the Queen now and her eldest grandson, Prince William Duke of Cambridge has been making his way to Balmoral in Ballater, Aberdeenshire to join.
News of the change of tone from the Queen's medical team comes after months of concern about the health of the 96-year-old monarch.
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In a break in tradition, the Queen met outgoing Prime Minister Boris Johnson and his successor Liz Truss in Balmoral, in Aberdeenshire on Tuesday, the Palace citing mobility issues for the change.
The Queen had been due to hold the Privy Council virtually on Wednesday evening, during which the new Prime Minister would have taken her oath as First Lord of the Treasury and her new cabinet ministers would have been sworn into their roles.
However, the online meeting of the Privy Council was cancelled after the Queen was advised to rest by doctors.
The palace said that after "a full day" on Tuesday the monarch, 96, had accepted the medics' advice.
But today, the tone of the message from Buckingham palace appears more concerning and the term medical supervision is now being used to explain the close monitoring of the Queen's health and progress during a period of restricted activities. It is not normally the role of a dedicated GP but of a senior and experienced medical supervisor recruited and trained by the GMC for this specific role.
The Prince of Wales and the Duchess of Cornwall have already travelled to Balmoral, the Royal Family's residence in Scotland with Duke of Cambridge following this morning.
Ms Truss said: “The whole country will be deeply concerned by the news from Buckingham Palace this lunchtime.
“My thoughts – and the thoughts of people across our United Kingdom – are with Her Majesty The Queen and her family at this time.”
Labour leader Sir Keir Starmer said he is “deeply worried” by the news from Buckingham Palace and he is hoping for the Queen’s recovery.
He tweeted: “Along with the rest of the country, I am deeply worried by the news from Buckingham Palace this afternoon.
“My thoughts are with Her Majesty the Queen and her family at this time, and I join everyone across the United Kingdom in hoping for her recovery.”
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