Russian opposition figure Alexei Navalny passed away in prison on February 16. This was announced by the Federal Penitentiary Service for the Yamalo-Nenets Autonomous Okrug, as reported by russian media.
"The causes of Navalny's death are being determined", - the statement said.
Earlier, it was reported that Alexei Navalny, the russian opposition politician who was in custody, supported the strategy "Noon against Putin".