On 31 October 2025, representatives from U.S. government, private sector, diplomatic corps and Thai and Thai-American citizens signed the Book of Condolences and paid respect to Her Majesty Queen Sirikit The Queen Mother at the Royal Thai Embassy. The distinguish representatives included the Honorable Sean O’Neill, U.S. Ambassador-Designate to Thailand; Ms. Kimberly Bassett, Secretary of the District of Columbia; and Ambassador of Madagascar to the U.S.