European allies' findings that Putin critic Alexei Navalny was killed with a rare toxin from poison dart frogs is "troubling, ...

The allegation feeds into a long history of high-profile poisonings in Russia, many targeting foes of President Vladimir Putin.

The UK government has condemned Russia’s use of “despicable tools” such as a lethal frog toxin reportedly deployed against ...

Russian opposition leader Alexei Navalny was poisoned by the Kremlin with a rare and lethal toxin found in the skin of poison ...

The Foreign Office has blamed the Russian state for the death of opposition leader Alexei Navalny, which it said was the result of poisoning from a dart frog toxin.

French Foreign Minister Jean-Noël Barrot said that Russian President Vladimir Putin is prepared to use biological weapons against his own people after claims emerged that Russian opposition leader ...

Laboratory testing showed that the deadly toxin found in the skin of the frogs (epibatidine) was found in samples from Mr Navalny's body and highly likely resulted in his death ...

European countries found the Russian opposition leader was poisoned with a lethal frog toxin while he was in prison.

In their high-security base in the Wiltshire countryside, the scientists of Porton Down made an astonishing discovery.

Russia is responsible for the 2024 poisoning death of Russian opposition figure Alexei Navalny while he was imprisoned after blaming a previous attempt on his life on Russian President Vladimir Putin.

During a chemical weapons convention, five European countries claimed Russia poisoned an opposition leader while in prison.

Foreign ministries from the U.K., France, Germany, Sweden and the Netherlands said testing conducted on samples taken from ...