Plans have been put in place in case the Queen dies while she is at Balmoral in Scotland, according to reports. Long established protocols already exist for 10 days of national mourning - called Operation London Bridge.
On top of that, Operation Unicorn dictates the protocols in case of the Queen dying while at her summer residence in Balmoral, Scotland.
Details of 'Operation Unicorn' emerged in 2019, Edinburgh Live reports, and they outline what would happen if the Queen died in Scotland.
According to the reports, if the Queen were to die at her retreat in Balmoral, her body would be taken to Holyrood Palace. The Palace, along with the Scottish Parliament and St Giles' Cathedral would become the main focus for the public and the world's media. Her coffin would then be carried to St Giles Cathedral in Edinburgh where the Queen would lie in state.
Large numbers of people would be expected to sign a book of condolence at Holyrood. The Queen's coffin would be placed on a royal train at Waverley station and taken south to London, where her funeral would be held.