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

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

Mourners in Moscow have marked two years since Russian opposition leder Alexei Navalny died in an Arctic prison, as a new ...

Two years after the death of Russian opposition leader Alexei Navalny, new claims about how he died are intensifying an ...

Russian opposition leader Alexei Navalny was poisoned with a rare lethal toxin found in poison dart frogs from South America, according to a joint statement from the U.K., France, Sweden, the ...

An analysis of samples from deceased Russian opposition leader Alexey Navalny shows he was likely fatally poisoned in a Russian prison, according to multiple European governments. In a joint statement ...

Russian opposition leader Alexei Navalny was killed by a “deadly toxin” extracted from an Ecuadorian frog, according to the foreign ministries of five European countries. Russian authorities have ...

Alexei Navalny died of poison epibatidine, which comes from a dart frog not native to Russia, according to a joint press release from five European governments Russia “had the means, motive and ...

Alexei Navalny, a thorn in the side of the Kremlin and Russia’s most prominent political dissident, died in prison after ...

FILE - Russian opposition leader Alexei Navalny speaks to the media in front of security officers standing guard at the Foundation for Fighting Corruption office in Moscow, Russia, Thursday, Dec. 26, ...

Péter Magyar, the leader of the Hungarian opposition Tisza party, has stated that the Fidesz party of current Prime Minister Viktor Orbán will in the coming days launch a disinformation campaign ...

Russian opposition leader Alexei Navalny died in prison after being poisoned with a deadly toxin found in Ecuadorian dart frogs, the U.K. and other allies claimed Saturday. There is no possible ...