Russians are voting in a presidential election that will produce a successor to Vladimir Putin and almost certainly open a path for him to take a new and influential role after eight years in power.
Nationwide turnout for Sunday's elections appeared to be above 60 per cent, with only two hours to go before polls closed.
As the day progressed, the independent Russian election monitoring group said it had received a steady stream of complaints.
Critics have denounced the election as little more than a stage show, with no significant opposition to Dmitry Medvedev, Putin's endorsed choice to take over the presidency.
Medvedev says that if he wins he will ask Putin to become prime minister.
The Central Elections Commission threw the only liberal candidate - Mikhail Kasyanov, a former prime minister - off the ballot for allegedly forging signatures on his nominating petitions.
Opposition criticism
Garry Kasparov, the former world chess champion and prominent Kremlin opponent, shelved his ambitions to run after his supporters were refused rental of a hall in which to hold the mandatory nominating meeting.
"It's not an election; it's a farce. Its results were known long ago," Kasparov said on Saturday after handing in a petition denouncing the vote at the election commission's headquarters in
Medvedev's opponents are Gennady Zyuganov, head of the Communist party, Vladimir Zhirinovsky, an ultranationalist, and the little-known Andrei Bogdanov.
Many activists and ordinary Russians claim that workers are being pressured by bosses to vote and that some have been ordered to turn in absentee ballots, presumably so that someone else could vote in their stead.
International election observers will be barely visible.
The Organization for Security and Co-operation in Europe (OSCE), refused to send observers, saying the Russian authorities were imposing such tight restrictions that they could not work in a meaningful way.
With Medvedev's victory virtually assured, the main political uncertainty in
Putin's role
The premiership that Putin is expected to take is the most powerful executive position in the government and Putin would be likely to maximize its influence.
Speculation persists that the parliament, overwhelmingly dominated by Putin's supporters, could expand the prime minister's powers, or that Medvedev could resign before his term is out, allowing Putin to return to the presidency.
But the president sets the government's philosophical and rhetorical tone, including its foreign policy, and the carefully spoken Medvedev so far has shown little of Putin's penchant for provocative criticisms of the West or bold assertions of
Medvedev did raise eyebrows recently with his comment that he could work with any
The new president's major domestic tasks hover around economic issues.
Inflation - more than 11 per cent last year - is undermining the nascent middle class.
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Al-Jazeera