A statement from Buckingham Palace said: “Following further evaluation this morning, The Queen’s doctors are concerned for Her Majesty’s health and have recommended she remain under medical supervision.”
It is understood the Queen’s immediate family members have been informed.
Last night, Buckingham Palace confirmed the monarch had pulled out of a Privy Council meeting.
In the latest development, Prince Charles and his wife Camilla and his son Prince William have travelled to Scotland.
