BBC One has suspended all regular programming until 6pm following news the Queen is under medical supervision amid concern for her health.
All the Queen's children - Charles, Anne, Edward, and Andrew - have travelled to Balmoral to be with her, as have Prince William and Prince Harry.
The Duchess of Cambridge has not travelled to Aberdeenshire as Prince George, Princess Charlotte and Prince Louis are on their first full day at their new school.
The BBC has been reporting on the news since just before 1pm but has now confirmed it will be the sole focus of coverage until this evening.
BBC One interrupted Bargain Hunt at 12.39pm to deliver the statement from Buckingham Palace which said royal doctors were concerned for the health of the Queen.
There were notes being handed around in the House of Commons earlier today before Speaker Lindsay Hoyle interrupted the speech of SNP Westminster leader Ian Blackford during the energy debate.
He told MPs: “I know I speak on behalf of the entire House when I say that we send our best wishes to Her Majesty the Queen and that she and the royal family are in our thoughts and prayers at this moment.”
On Tuesday, the Queen shook hands with new Prime Minister Liz Truss and invited her to form a government at Balmoral in a break from tradition.
On Wednesday evening, the Queen was forced to back out of a virtual Privy Council meeting at the last minute.
