A Russian judge sentenced protest leader Alexei 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, hugged his wife and shook his father's hand before he was led away from court handcuffed to a law enforcement officer.   

The sentence was immediately denounced by rights activists and Kremlin critics, many of whom say the trial was part of a clampdown on dissent in Putin's third presidential term. Prosecutors had asked for six years.

The charismatic anti-corruption blogger and Moscow mayoral candidate was, earlier in the day, found guilty of heading a group that embezzled roughly $515,000 worth of timber from state-owned company Kirovles in 2009.

That was the same year that Navalny, a lawyer, started an anti-corruption blog that attracted a wide following and propelled him into becoming a key opposition figure.  

It was Navalny who called the dominant United Russia party "the party of crooks and thieves," a phrase that became a rallying cry for the nascent opposition to Russia's leader, Vladimir Putin.  

Navalny was a top leader of the wave of massive protest rallies that broke out in late 2011 after a national parliamentary election scarred by allegations of widespread fraud.  

More recently, he pushed his ambitions by declaring himself a candidate for this fall's Moscow mayoral election.  

Appeals process

The conviction does not immediately nullify his candidacy. That wouldn't happen until his defense team exhausted its appeals, which could take several months.  

It's unclear whether the conviction would intimidate his supporters or undermine the activists who have coalesced around him.  

The judge said he found the testimony of key prosecution witness Vyacheslav Opalev to be "trustworthy and consistent."  

Opalev, who was the timber company's general director, got a suspended sentence in an expedited trial in December after pleading guilty to conspiring with Navalny.  

Navalny insists Opalev framed him out of revenge: Navalny had recommended that Opalev be fired and that officials investigate potential corruption in his company, which had incurred some $6 million in losses by the time Navalny arrived in the region.  

Throughout the trial, testimony of prosecution witnesses clashed with the core arguments of the indictment that claimed Navalny's work in Kirov led to the embezzlement. None of the managers at Kirovles who appeared in court, except for Opalev, were able to confirm that Navalny defrauded the company.  

Navalny had long said he expected to be convicted, and in a final blog post before leaving Moscow for Kirov, he downplayed his personal importance to the wider opposition.  

"The most important thing is to muster up the strength, shake off laziness and do something. This doesn't require any leadership as such," he wrote.