The local Tass News agency reported that a cause of death is still being established.
He had spent the past few years, and many years of his adult life, in prison.
Most recently, he wasserving a 19-year jail termfor offenses that were widely deemed to be politically motivated.
Alexei NavalnyAFP photo / Anton Belitskiy via Getty Images
He was moved to an Arctic penal colony, considered one of the toughest jails, late last year.
We do not have any way to confirm it or to prove this isnt true.
The film premiered at Sundance in 2022 asthat years surprise screeningand attracted rave reviews.
Born in 1976, Navalny studied as a lawyer before joining the Russian United Democratic Party Yabloko in 2000.
He believed he had been poisoned and enlisted the help of Bellingcat and other media.
The next Russian presidential election is just weeks away and Putin will be running again.
Navalny is survived by wife.
Tributes and speculation as to Navalnys cause of death immediately started flooding in.
Latvian president Edgars Rinkevics said on X that Navalny was brutally murdered by the Kremlin.
European Parliament President Roberta Metsola said the world has lost a fighter whose courage will echo through generations.
Russia took his freedom & his life, but not his dignity, she tweeted.
His struggle for democracy lives on.
