Five European countries, including Britain, France and Germany, said Saturday that Russian opposition leader Alexei Navalny was killed by a "rare toxin" from a dart frog and that the Russian state was the prime suspect ... .
Five European countries say tests confirm Russian opposition leader Alexei Navalny was poisoned with a lethal toxin found in poison frogs, and they blame the Russian state ... .
Russia has dismissed claims by Britain and its European allies that Alexei Navalny was killed with dart frog poison, branding them a Western 'information campaign' ... .
According to new test results Russian dissident Alexei Navalny died from the poison of the lethal dart frog - but exactly how did it end his life? ... .