Crowds of people have begun to gather outside London’s Buckingham Palace as news spreads that Queen Elizabeth II is under medical supervision at her Balmoral estate in Scotland.

More than 100 people, many holding umbrellas amid sometimes heavy downpours, have congregated on stone steps outside the royal residence, and dozens more are standing beside the gates, with many people peering through them.

Members of the royal family traveled to Scotland to be with the 96-year-old monarch.

Also Read: Queen Elizabeth II under medical supervision, suffering from age-related issues

The announcement about the queen’s health on Thursday comes a day after she canceled a virtual meeting of her Privy Council when doctors advised her to rest following a full day of events on Tuesday, when she formally asked Liz Truss to become prime minister.

Key developments:

On Wednesday, the queen canceled a virtual meeting after doctors advised her to rest

On Tuesday, the queen formally asked Liz Truss to become Britain’s next prime minister

Foreign leaders are sending their well wishes to Britain’s Queen Elizabeth II well, after the 96-year-old monarch was placed under medical supervision because doctors are concerned about her health.

Canadian Prime Minister Justin Trudeau tweeted his on Thursday, writing: “My thoughts, and the thoughts of Canadians across the country, are with Her Majesty Queen Elizabeth II at this time. We’re wishing her well, and sending our best to the Royal Family.”

Also Read: Liz Truss rebuked by speaker Hoyle over prior notice on energy bill

The queen is the head of state of Canada and has been so for 45% of the country’s existence. She has visited Canada 22 times.

President Joe Biden conveyed to Prime Minister Truss on Thursday that his and first lady Jill Biden’s thoughts were with the Queen, her family and the people of the United Kingdom.

National Security Council spokesman John Kirby told reporters that Biden spoke to Truss during a video call with allies on support for Ukraine.

And EU Commission President Ursula von der Leyen said during a news conference in the Netherlands that her prayers were also with the queen.

“She represents the whole history of the Europe that is our common home with our British friends,” von der Leyen said. “She has given to all of us in all these years, always, stability, confidence. She’s shown an immense amount of courage. She is a legend in my eyes, and therefore my prayers are with her.”

Buckingham Palace says Queen Elizabeth II has been placed under medical supervision because doctors are “concerned for Her Majesty’s health.”

Also Read: Why Liz Truss will be appointed at Balmoral Castle, not Buckingham Palace

Members of the royal family traveled to Scotland to be with the 96-year-old monarch.

The announcement comes a day after the queen canceled a virtual meeting of her Privy Council when doctors advised her to rest following a full day of events on Tuesday, when she formally asked Liz Truss to become prime minister.

Prince Charles, the heir to the throne, and his wife, Camilla, are with the queen after traveling to Balmoral Castle, the queen’s summer vacation home, to be with her. Prince William, Charles’ eldest son, is also en route.