Russian protest leader Alexei Navalny (L, front) is escorted by an Interior Ministry officer inside a courtroom in Kirov, July 18, 2013. A Russian judge sentenced Navalny to five years in prison on Thursday after convicting him of large-scale theft in a trial Navalny said was politically motivated. Navalny, one of President Vladimir Putin's biggest critics, was led away from court by law enforcement officers after the judge pronounced the sentence in the industrial city of Kirov. Prosecutors had asked for a six-year sentence. [Photo/Agencies]

Limited Support

Yet public support for Navalny is limited, especially outside big cities, and Putin remains popular with many Russians.

Independent pollster Levada had put Navalny on about 8 percent support in the Moscow mayoral election, while it said Putin's job approval rating stood at 63 percent in June.

Judge Sergei Blinov read the verdict rapidly and without emotion in the packed Kirov courtroom, hardly looking up as he took about three and a half hours to explain his conclusions.

"The court, having examined the case, has established that Navalny organised a crime and ... the theft of property on a particularly large scale," he said.

Pyotr Ofitserov, Navalny's co-defendant, was convicted as an accomplice and sentenced to four years in prison.

Navalny, a powerful orator who has accused the authorities of being "swindlers and thieves", stood in silence with a puzzled expression as he listened to the verdict. He has 10 days to appeal, and his lawyer, Vadim Kobzev, said he would do so.

In an unexpected twist, prosecutors later lodged a complaint against the ruling under which Navalny was taken into custody, saying he should remain free, with travel restrictions, until a ruling on his appeal. A hearing on the issue was set for Friday.

The head of his campaign staff, Leonid Volkov, said Navalny had told him he would withdraw from the Moscow race if he was jailed, and that Navalny would make a statement about this on Friday. "There is no sense in taking part in it," Volkov said.

Navalny had said the charge against him was politically motivated and that the verdict would be dictated by Putin.

He denied guilt and pointed out that an initial investigation, over accusations that he had pressured a state forestry company to agree to a disadvantageous deal with a middleman firm, had been closed for lack of evidence.

"Dictator"

Navalny is the most prominent opposition leader to be prosecuted in Russia since Soviet times.

Since Putin returned to the presidency after four years as prime minister, women from the punk band Pussy Riot have been jailed for a protest against him in Russia's main cathedral, and 12 opposition activists have gone on trial over violence that erupted at a protest on the eve of his inauguration in May 2012.

Another protest leader, Sergei Udaltsov, is under house arrest in what the opposition says is a crackdown on dissent.

The Kremlin denies that Putin uses the courts for political ends, and the judge rejected Navalny's claim of political motivation. Putin's spokesman, Dmitry Peskov, did not immediately answer calls after the sentence was pronounced.

Opposition politician Boris Nemtsov, who attended the hearing, said he was shocked. "With today's ruling, Putin has told the whole world he is a dictator who sends his political opponents to prison," Nemtsov told Reuters.

Former finance minister Alexei Kudrin, a longtime Putin ally, said the verdict would hurt business activity and the investment climate in Russia, where corruption and a lack of property rights dim the allure of potentially big profits.

William Browder, a Briton who was once one of Russia's biggest foreign equity investors but fell foul of the authorities, referred to the start of Stalin's show trials by saying: "This is like 1937 all over again."