Police officers detain people during a protest near the Matrosskaya Tishina prison where Alexei Navalny is being held, in Moscow, Russia, on Sunday, Jan. 31, 2021. Chanting slogans against President Vladimir Putin, thousands of people took to the streets Sunday across Russia's vast expanse to demand the release of jailed opposition leader Alexei Navalny, keeping up the nationwide protests that have rattled the Kremlin. Over 1,600 were detained by police, according to a monitoring group. (AP Photo/Alexander Zemlianichenko)