Navalny Was Poisoned With Frog Toxin, European Governments Say

Aleksei A. Navalny was most likely poisoned by a toxin found in a South American frog, five European countries said on Saturday, making the most concrete Western accusation yet that Russia's leading opposition figure was murdered by his government in an Arctic prison two years ago.

Samples taken from Mr. Navalny's body showed the presence of a toxic substance, epibatidine, according to a statement released by the foreign ministries of Britain, France, Germany, Sweden and the Netherlands.