MOSCOW: Jailed Russian opposition leader Alexei Navalny is dead, the prison service of the Yamalo-Nenets region where he had been serving his sentence said on Friday.

In a statement published on its website, the Federal Penitentiary Service of the Yamalo-Nenets Autonomous District said that Navalny “felt unwell” after a walk on Friday, and “almost immediately lost consciousness”.

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It said that medical staff had been called, but that they were unable to resuscitate Navalny. It said the reason of death was being established.