Rishi Sunak has accused the Greek prime minister of “grandstanding” over the deepening row surrounding the Elgin Marbles.

Mr Sunak said he cancelled a meeting with Kyriakos Mitsotakis because it was “clear” the purpose of it “was not to discuss substantive issues for the future, but rather to grandstand and relitigate issues of the past”.

He repeated his claim that the Greeks broke “assurances” not to lobby for the return of the artefacts while on a visit to the UK – something Athens has denied.

Sir Keir made the point that he met with the Greek PM and told him Labour wouldn’t change the law regarding the marbles, saying “it’s not that simple”.

Mr Sunak hit back: “No one will be surprised that he’s backing an EU country over Britain.”

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