British PM Rishi Sunak accused Greek PM Kyriakos Mitsotakis of "grandstanding" over the Parthenon sculptures during a London visit, leading to the cancellation of a planned meeting. Sunak claimed Mitsotakis broke a promise not to advocate for the return of the Elgin Marbles. The Greek government responded by emphasizing the need to preserve longstanding relations. Mitsotakis, later toning down the rhetoric, referred to the meeting's cancellation as an "unfortunate event." The dispute adds to tensions over the ownership of cultural artifacts.