Oct. 2 (UPI) -- A Moscow judge sentenced Alexei Navalny to 20 days in jail Monday for organizing an unauthorized rally to support his intent to run against President Vladimir Putin in 2018.
It will be Navalny's third jail stent this year.
Police arrested him Friday as he traveled to Nizhny Novgorod, where he had called on his supporters to gather. Navalny said he didn't break any laws and argued he's being targeted for opposing Putin's government.
In June, a judge sentenced him to 30 days in jail for illegally staging a rally in Moscow. He and more than 800 people were arrested in the Russia Day event. Navalny's sentence was later reduced to 25 days.
On Monday, Navalny said he considered his new sentence a "birthday president for Putin," who turns 65 on Saturday.
Russia's Central Election Commission in June barred Navalny from running for president in 2018 because of a prior criminal conviction.