An online poll to elect members of an opposition council in Russia has been extended until Monday night.
It comes after claims that the system was targeted by hackers during the early stages of voting.
Former World chess champion Garry Kasparov is among the candidates. He says the response has been impressive.
“It’s an incredible achievement,” Kasparov told reporters.
“We are not talking about general voters, but about people who were verified, people who have become active participants in this history.”
Opposition activists, angry about President Vladimir Putin’s continuing grip on power, say the online election is a step towards democracy. The Kremlin has said it will ignore the poll.