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The UK foreign office said it was in touch with local authorities but has not confirmed the identities of the victims.

The UK Foreign Office warned travellers to expect disruption over the Easter weekend and to check their tour operator's advice and follow the advice of authorities.

The Chinese Embassy and the Foreign Office have been approached for comment.

Former Conservative defence and Foreign Office minister Tobias Ellwood has warned that the UK is "behind the curve" in tracking Russia's deep-sea operations.

Andrew Mitchell - Former international development secretary who went on to serve as David Cameron's number two in the Foreign Office in Sunak's government.