The BBC's royal editor has explained why Buckingham Palace's statement about the Queen's health is so serious.
Earlier today, on September 8, the 96-year-old monarch was placed under medical supervision after doctors became concerned for her health. Her immediate family have since travelled to join her at Balmoral, where she is said to be "comfortable and resting."
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. The Queen remains comfortable and at Balmoral."
