Pictures of Dmitry Urkin (left) and Yevgeny Prigozhin (right) among carnations laid by people at a memorial in Moscow. Photograph: Pelagiya Tihonova/Anadolu Agency via Getty Images Russia has said that Wagner mercenary group leader Yevgeny Prigozhin was killed with several close associates in an unexplained plane crash last week, as international pressure mounted on Moscow to renew a deal to safeguard grain exports from Ukrainian ports. Mr Prigozhin was presumed dead after a private jet he was thought to be aboard crashed en route from Moscow to Saint Petersburg last Wednesday, two months after Wagner fighters staged a brief revolt...