Russian opposition leader Alexei Navalny, who organized a wave of nationwide protests against government corruption that rattled authorities, was fined 20,000 rubles ($340) by a Moscow court on Monday. It was a comparatively lenient punishment for organizing an unsanctioned rally for which he faced up to 15 days in jail. The court has yet to deliver a ruling on charges accusing the opposition leader of resisting arrest. Navalny was arrested on Sunday as he walked to a protest gathering in Moscow and spent the night in jail before appearing in court. The Kremlin, meanwhile, has lashed out at protest organizers, blaming them for putting lives at risk by inviting people to unsanctioned demonstrations. Tens of thousands of protesters took to the streets across Russia on Sunday in the biggest show of defiance since 2011-2012 anti-government protests. The Kremlin has dismissed the opposition as Westernized urban elite disconnected from the issues faced by the poor in Russia’s far-flung regions, but Sunday’s protests included demonstrations in the areas which typically produce a high vote for President Vladimir Putin, from Siberia’s Chita to Dagestan’s Makhachkala. Russian police say that about 500 people were arrested, while human rights groups say 1,000 were taken into custody.