Russian opposition leader Alexei Navalny has been released from custody after serving a 30-day jail sentence for staging an unsanctioned protest in Moscow.
Mr Navalny called for 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 tsar" took place throughout the country.
A court in Moscow convicted Mr Navalny in May on charges of organising an unauthorised rally and resisting police, and ordered him to be jailed for 30 days.
Mr Navalny walked free on the opening day of the Russia-hosted World Cup.
The anti-corruption campaigner, who has become Mr Putin's most visible political foe, has served several jail terms for organising other protests.