PARIS: Polonium, Novichok and now dart frog poison: the finding that Russian opposition leader Alexei Navalny was killed with a rare toxin has revived the spectre of Moscow’s use of poisons against opponents — a hallmark of its secret services, according to experts. The neurotoxin epibatidine, found in Ecuadoran frogs, was identified in laboratory analyzes of samples from Navalny’s body, the British, Swedish, French, German and Dutch governments said in a joint statement released on Saturday at the Munich Security Conference.

La rivelazione sulla fine dell’oppositore di Putin, morto in una colonia penale in Siberia

There is no innocent explanation for the toxin, called epibatidine, being found in samples taken from Navalny's body, the Foreign Office said.