Navalny was convicted on embezzlement charges and sentenced to five years in prison on July 18, but was released from prison the next day in what some considered a ploy to make the Moscow mayoral race, where he was registered as a candidate, look as competitive as possible.
Navalny garnered an unexpected 27 percent against the Kremlin-backed incumbent. His growing public profile has made it increasingly risky for the Kremlin to put him behind bars.
A judge in the court in Kirov, 760 kilometers (460 miles) east of Moscow, read out the decision on Wednesday.
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