Navalny called a series of rallies in the Russian capital and other cities on May 5, just before President Vladimir Putin's inauguration for a new term. Demonstrations under the slogan "He is not our czar" took place throughout the country.
A court in Moscow convicted Navalny in May on charges of organizing an unauthorized rally and resisting police, and ordered him jailed for 30 days. Navalny walked free as the Russia-hosted World Cup was set to open Thursday.
The anti-corruption campaigner, who has become Putin's most visible political foe, has served several weeks-long jail terms for organizing other protests.
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