Durov, who created Vkontakte seven years ago, first announced his intention to leave the company on April 1 but withdrew his resignation letter two days later. On Monday, he announced that he had been fired and that the social network would now fall under “full control” of Kremlin-linked Rosneft CEO Igor Sechin and Vkontakte billionaire shareholder Alisher Usmanov.

The move to oust Durov is widely seen as part of a wider campaign by the Kremlin to tighten its grip on the Internet, and observers said the authorities aimed to “cleanse” the management of Russian Internet companies in the hopes of gaining control of their content.

Last week, Durov said in an interview with the New Times that the Federal Security Service had turned up the pressure on Vkontakte employees dramatically in recent months, demanding that Durov release personal information about Euromaidan activists. He said the Prosecutor General's Office ordered him to shut down a group on the website dedicated to anti-corruption activist Alexei Navalny, though he refused to do so.