The anchor and reporters on the public service broadcaster in the United Kingdom wore black clothing on Thursday as concerns about the health of Queen Elizabeth II increased.

The first step on a list of strict protocols media organizations were required to follow in the event of the Queen's death was this.

Buckingham Palace stated that the Queen's doctors were concerned for her health and decided to keep her under medical supervision.

The palace said at the time that the monarch was comfortable.

It was reported that senior members of the Royal Family, including Prince Charles and his sons Prince William and Prince Harry, went to be with the Queen.

The time is at 4 p.m. It was reported on Thursday that members of the Royal Family had arrived at Aberdeen Airport.

Britain’s Prince Edward and Prince Andrew arrive to Balmoral Castle, amid concerns over Britain’s Queen Elizabeth’s health, in Balmoral, Scotland, Britain September 8, 2022.

The man is Russell Cheyne.

Media gather at the entrance to Balmoral in Scotland, where the Queen is under medical supervision with the royal family rushing to be by her side amid serious health fears.

Andrew Milligan is a photographer.

Crowds gather outside Buckingham Palace, central London on September 8, 2022.

The images are of Daniel Leal.

Well-wishers bring flowers outside Buckingham Palace on September 8, 2022.

The images are of Daniel Leal.

The Union flag flies over Buckingham Palace in central London.

The images are of Kirsty O'Connor.

A member of staff holds a board reading “No changing of the guard ceremony today” in the courtyard of Buckingham palace.

The images are of Daniel Leal.

Members of the 94 Squadron of the Queen’s Own Gurkha Logistic Regiment are seen during a final inspection parade at Wellington Barracks on September 8, 2022 in London, England.

The images are of Leon Neal.

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News anchor wore black on Thursday and regular programming was suspended to make room for a special news show.

Many of the U.K.'s major news outlets have had rigorous plans in place for years to prepare for the Queen's death, but the BBC's protocols are the most stringent of them all.

Operation London Bridge

A plan specifying in precise detail how the Queen's death will be communicated to government officials, the media and the public will be put in place.

Many of the organization's staff are aware of the radio alert transmission system, but have never seen it in action.

After the Queen's death is announced, the broadcasters will continue to wear black.

As they prepare to announce the news, its radio stations will play somber songs as they interrupt their broadcasts.

When it comes to music on the radio, there is a procedure that can be found in other places.

According to leaked documents, every radio station, even hospital channels, have playlists prepared which consist of "Mood 2" or "Mood 1" songs for teams to listen to in case of sudden national mourning.

The obituaries and commentary about the Queen and the Royal Family will be the most watched obituaries in the UK.

A source told Fortune that staff at The Telegraph have been told to wear black for a number of days in the event of the Queen's death.

Digital blackout

The U.K. government and the royal family website will go into a state of mourning after the death of the Queen.

The royal family website will change to a black holding page after the Queen died.

Government departments will no longer be allowed to post non-essential content on the social networking site.

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