US President Joe Biden has been briefed on news that Queen Elizabeth II’s doctors are concerned for her health as members of the Royal Family travel to Balmoral, Scotland, and conveyed well wishes to British Prime Minister Liz Truss during a call Thursday. 

“The President has been briefed, of course, this morning and will be updated throughout the day concerning news out of the United Kingdom,” John Kirby, the National Security Council director for strategic communications, told reporters Thursday. 

“His and the first lady’s thoughts are solidly and squarely with the Queen today and her family,” Kirby said.  

Biden, Kirby added, “did convey to Prime Minister Truss, who was on the video teleconference (with allies and partners regarding Ukraine) that he and Dr. Biden are thinking very much about the Queen and the family and the people of the United Kingdom.”

The spokesperson for the United Nations Secretary-General António Guterres has also voiced the UN chief’s thoughts to the British royals.

“I think we’re all following the developing story in the United Kingdom, and I just want to say from the secretary general’s point of view, that his thoughts are with the Queen, her family, and the people of the United Kingdom at this time," UN Secretary-General spokesman Stéphane Dujarric said.

CNN’s Richard Roth and Zenebou Sylla contributed reporting to this post.