The toxin, epibatidine, can be found in frogs in the wild in South America or manufactured in a lab.

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

The modern poison has become less a medieval cliché than a geopolitical signature flourish.

Alexei Navalny, the Russian opposition leader, died from a 'dart frog toxin,' the UK Foreign Office announced.

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

The Russian state killed opposition leader Alexei Navalny using a poison developed from a dart frog toxin, the Foreign Office ...

Five European governments say tests confirmed Alexei Navalny was poisoned with a lethal dart frog toxin while held in a ...

ALEXEI Navalny’s wife has called for Vladimir Putin to pay for his actions – after it was revealed the opposition leader was ...

The five nations now plan to submit their findings to the Organisation for the Prohibition of Chemical Weapons (OPCW) to ramp ...

ALEXEI Navalny was poisoned with a deadly dart frog toxin administered by Russian prison thugs on Vladimir Putin’s orders, it has been claimed. The Russian opposition leader, 47, was found ...

Russian opposition leader Alexei Navalny died in prison after being poisoned with a deadly toxin found in Ecuadorian dart ...

Five European countries on Saturday accused Russia of ‘poisoning’ opposition leader Alexei Navalny in prison using a ‘rare ...