>>16099828D-DAY
The day the Queen dies will be known in Whitehall as D-Day, according to Politico which obtained the plans.
The Prime Minister will be told by Buckingham Palace's most senior courtier, while the head of the civil service and top ministers will also be informed.
Flags will be lowered to half-mast across Government buildings within 10 minutes and Parliament will adjourn if sitting.
As when Prince Philip died earlier this year, the Royal Family's website will revert to a black holding page confirming the Queen's death.
>https://www.the-sun.com/news/uk-news/3593906/secret-plans-for-queens-death-revealed/