Bystanders and media gathered outside Buckingham Palace on Thursday as Queen Elizabeth II was put under medical supervision at her summer residence in Scotland after doctors raised concerns about the 96-year-old monarch’s health. Buckingham Palace said Thursday that members of the royal family had rushed to be at her side. The announcement by the palace came 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 Britain's prime minister.