GOVERNMENT plans for the Queen’s death, known as "Operation London Bridge", were leaked last year.

They are in the spotlight once again after it was announced that the Queen is under medical supervision at Balmoral with doctors concerned for her health.

The details, leaked to Politico, suggest the day the Queen dies will be known as "D-Day".

Government departments will be told to have flags at half mast within 10 minutes of officials being told, and will be instructed to show “discretion”.

Prince Charles will become king when his mother passes and will address the UK on the day of his mother’s death.

The National:

The Prime Minister will be the first government official to release an official statement.

The Queen will be buried 10 days after her death with Prince Charles expected to embark on a UK tour in the days leading to the burial.

According to reports, parliamentary business will be suspended for 10 days and the sovereign’s coffin will lie in state for three days at the Houses of Parliament.

The Royal household will issue an official statement notifying the nation of the monarch’s passing.

What will happen when the Queen dies?

On the day of the monarch’s death ministers will receive a call and an email reading: “Dear colleagues, it is with sadness that I write to inform you of the death of Her Majesty The Queen.”

The details of the funeral will be announced while government and royal websites will display a black banner.

Charles will deliver a speech to the UK before meeting the Prime Minister.

The day after the Queen’s death, government officials will proclaim Charles their new king.

The Day of the Queen’s funeral

The day of the funeral will be a day of national mourning although employers will not be forced to give employees the day off work.

The funeral will be held at Westminster Abbey and a national two-minute silence will be held at noon.

The Queen will be buried at King George VI Memorial Chapel.