Russian opposition leader Alexei Navalny died Friday at the Arctic prison colony where he was serving a 19-year-term, Russia's federal penitentiary service said.
Alexei Navalny, the jailed Russian political leader who was a fierce critic of President Vladimir Putin, has been found dead at the federal prison in Russia's Yamalia, where he was serving his sentence.
"This is terrible news. As the fiercest advocate for Russian democracy, Alexei Navalny demonstrated incredible courage throughout his life", said Rishi Sunak on X (Formerly Twitter).
Russian opposition leader Alexei Navalny, who died in an Arctic prison on Friday, leveraged social media and fatigue with the Kremlin to rise to prominence.