US President Donald Trump and First Lady Melania Trump welcomed King Charles III and Queen Camilla to the White House on Monday afternoon, with the visit drawing attention after a brief moment that sparked discussion over royal protocol.

Axar.az informs, citing Daily Mail, that after arriving on the South Lawn for an official reception, the two couples exchanged greetings. Donald Trump shook hands with King Charles III, while First Lady Melania Trump greeted Queen Camilla.

The leaders posed for photos before heading inside the White House for tea in the Green Room and a tour of the South Lawn beehives.

Attention later focused on a brief moment as Trump lightly touched the King on the arm while guiding him inside, an action considered a breach of royal protocol, which discourages physical contact with members of the monarchy.

Body language expert Judi James described the gesture as a sign of informal friendship during the visit.