Russian opposition leader Alexei Navalny was killed by the Russian state, the Foreign Office has revealed. Navalny's death was the result of poison from a South American dart frog toxin called epibatidine - a claim that Moscow has swiftly rejected as 'a Western propaganda hoax.' In a statement released by the Foreign Office in conjunction with other European nations, a spokesperson said: 'The UK, Sweden, France, Germany and the Netherlands are confident that Alexei Navalny was poisoned with a