Law enforcement officers detain a man during a rally in support of jailed Russian opposition leader Alexei Navalny in Moscow, Russia January 23, 2021. Police detained over 1,000 people across Russia on Saturday and used force to break up rallies around the country as tens of thousands of protesters demanded the release of Kremlin critic Alexei Navalny, whose wife was among those detained. REUTERS/Evgenia Novozhenina

A law enforcement officer detains a man during a rally in support of jailed Russian opposition leader Alexei Navalny in Moscow, Russia January 23, 2021. Navalny had called on his supporters to protest after being arrested last weekend as he returned to Russia from Germany for the first time since being poisoned with a nerve agent he says was applied to his underpants by state security agents in August. REUTERS/Maxim Shemetov

Law enforcement officers push people during a rally in support of jailed Russian opposition leader Alexei Navalny in Moscow, Russia January 23, 2021. In central Moscow, where Reuters reporters estimated at least 40,000 people had gathered in one of the biggest unauthorised rallies for years, police were seen roughly detaining people, bundling them into nearby vans. REUTERS/Maxim Shemetov

Law enforcement officers clash with participants during a rally in support of jailed Russian opposition leader Alexei Navalny in Moscow, Russia January 23, 2021. REUTERS/Maxim Shemetov

Law enforcement officers detain a participant during a rally in support of jailed Russian opposition leader Alexei Navalny in Moscow, Russia January 23, 2021. REUTERS/Evgenia Novozhenina

Law enforcement officers stand in front of participants during a rally in support of jailed Russian opposition leader Alexei Navalny in Saint Petersburg, Russia January 23, 2021. REUTERS/Anton Vaganov