Police officers stand at an entrance of the court building during Navalny's court hearing in Khimki, outside in Moscow, Russia, Monday, Jan. 18, 2021. Russian opposition leader Alexei Navalny's arrest as he arrived in Moscow after recovering from his poisoning with a nerve agent drew criticism from Western nations and calls for his release. (AP Photo/Pavel Golovkin)

Police officers stand at an entrance of the police station during Navalny's court hearing in Khimki, outside in Moscow, Russia, Monday, Jan. 18, 2021. Russian opposition leader Alexei Navalny's arrest as he arrived in Moscow after recovering from his poisoning with a nerve agent drew criticism from Western nations and calls for his release. (AP Photo/Pavel Golovkin)

A woman writes with her foot on a frosty barrier in Russian 'We demand freedom for Navalny' in St.Petersburg, Russia, Monday, Jan. 18, 2021. Russian opposition leader Alexei Navalny was detained at passport control at Moscow's Sheremetyevo airport after flying in Sunday evening from Berlin, where he was treated following the poisoning in August that he blames on the Kremlin. (AP Photo/Dmitri Lovetsky)

Russian police officers are seen outside a police station in Khimki, outside Moscow, where opposition leader Alexei Navalny is held following his detention at a Moscow airport upon the arrival from Berlin. (Photo by Andrey BORODULIN / AFP)

Supporters of Alexei Navalny gather near a police station in Khimki, outside Moscow, where the opposition leader is held following his detention at a Moscow airport upon the arrival from Berlin. (Photo by Andrey BORODULIN / AFP)

Russian police officers are seen outside a police station in Khimki, outside Moscow, where opposition leader Alexei Navalny is held following his detention at a Moscow airport upon the arrival from Berlin. (Photo by Andrey BORODULIN / AFP)

People, including members of the media and supporters of Alexei Navalny, gather near a police station in Khimki, outside Moscow, where the opposition leader is held following his detention at a Moscow airport upon the arrival from Berlin. (Photo by Andrey BORODULIN / AFP)

A police wagon carrying opposition leader Alexei Navalny leaves the yard of a police station in Khimki, outside Moscow, following the court ruling that ordered him jailed for 30 days. - Kremlin critic Alexei Navalny on Monday urged Russians to stage mass anti-government protests during a court hearing after his arrest on arrival in Moscow from Germany. (Photo by Alexander NEMENOV / AFP)

Police officers stand guard waiting a wagon carrying opposition leader Alexei Navalny to leave the yard of a police station in Khimki, outside Moscow, following the court ruling that ordered Navalny jailed for 30 days. - Kremlin critic Alexei Navalny on Monday urged Russians to stage mass anti-government protests during a court hearing after his arrest on arrival in Moscow from Germany. (Photo by Alexander NEMENOV / AFP)