An ally of Alexei Navalny says that talks about exchanging the Putin critic and two US nationals for a Russian FSB security service hit man in jail in Germany, were in their final stages.
As Russians continue to gather and lay flowers, more than 400 people have been detained from across 32 cities for participating in events to mourn the death of Putin critic Alexei Navalny.
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.
NATO chief Jens Stoltenberg said Friday there were "serious questions" for the Kremlin to answer over the death of jailed Russian opposition leader Alexei Navalny.