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.

More than 50 members of Congress are attending the Munich Security Conference, which runs through Sunday. Follow for live updates.

Two years after the death of Russian opposition leader Alexei Navalny in a remote Arctic prison, the verdict is finally in. Careful forensic investigation using samples of his tissue smuggled out of ...

"The UK, Sweden, France, Germany and the Netherlands are confident that Alexei Navalny was poisoned with a lethal toxin," the ...

Ukraine's president has stated that Vladimir Putin 'doesn't have too much time left'.

The dissident was killed while in Russian custody by a substance that doesn’t occur naturally in Russia, according to the ...

Russian opposition figure and outspoken Kremlin critic Alexey Navalny, who died two years ago, was killed while in prison by ...

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.

His score of books and hundreds of essays documented Stalinist executions, Communist repressions and censorship, and the transition to post-Soviet Russia.

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.

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

With Vladimir Putin’s war machine sputtering, it’s time to push the Kremlin even harder to force an end to his war on Ukraine.