Russian opposition leader Alexei Navalny was poisoned by the Kremlin with a lethal toxin derived from the skin of poison dart frogs, five European countries said Saturday. It is a toxin found in poison dart frogs in South America that is not found naturally in Russia, they said. "Russia saw Navalny as a threat," British Foreign Secretary Yvette Cooper said. "Putin killed Alexei with chemical weapon," she wrote on X, calling Putin "a murderer" who "must be held accountable." Navalny was the target of an earlier poisoning with a nerve agent in 2020 in an attack he blamed on the Kremlin, which always denied involvement.

Source: CBC News February 15, 2026 10:03 UTC