Navalny's wife should keep his voice alive, Litvinenko widow says

FILE PHOTO: Marina Litvinenko, widow of former Russian intelligence agent Alexander Litvinenko, takes part in a demonstration in support of jailed Russian opposition politician Alexei Navalny outside the Russian Embassy in London, Britain, April 21, 2021. REUTERS/Henry Nicholls/File Photo

LONDON (Reuters) - The wife of Alexei Navalny, Yulia Navalnaya, needs to keep her husband's voice alive, the widow of Alexander Litvinenko said on Saturday following the death of the prominent Kremlin critic.

Russian authorities said 47-year-old Navalny fell unconscious and died on Friday after a walk at the "Polar Wolf" Arctic penal colony where he was serving a long sentence.