LONDON (AP) — Russian opposition leader Alexei Navalny was poisoned by the Kremlin with a rare and lethal toxin found in the skin of poison dart frogs, five European countries said Saturday.

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Aleksei Navalny was most likely poisoned by a toxin found in a South American frog, five European countries said on Saturday, ...

Poison dart frogs have fascinated researchers. Now their toxin has allegedly been linked to the death of Russian opposition leader Alexei Navalny.

The toxin was found in the body of the Russian dissident Aleksei A. Navalny, who died in prison two years ago, five governments said, challenging Russia’s official account.

Toxin from poison dart frogs probably killed Alexei Navalny in a Russian prison, five countries announced on the two-year anniversary of his death.

Russian opposition figure and outspoken Kremlin critic Alexey Navalny, who died two years ago, was killed while in prison by a lethal toxin found in poison dart frogs in South America, five European ...

Dart frogs in captivity do not produce the toxin, and it is not found naturally in Russia, five European governments said.

Alexei Navalny died of poison epibatidine, which comes from a dart frog not native to Russia, five European countries allege ...

There is no innocent explanation for the presence of the toxin detected after Navalny's death, European allies say, noting the frogs are not found in Russia.

Five European countries say tests confirm late Russian opposition leader Alexei Navalny was poisoned with a lethal toxin found in poison frogs, and they blame the Kremlin.