The rare, outspoken remark from the Queen was caught on camera during a meet-and-greet session yesterday.

The monarch, who recently turned 90, was referring to the behaviour of Chinese officials during last year's visit by President Xi Jinping.

She was having a conversation with a Lucy D'Orsi senior officer of the Metropolitan Police regarding how the British ambassador to China was treated last year.

Their conversation was filmed at a garden party held at Buckingham Palace.

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