US Secretary of State Antony Blinken sharply condemned Russia's over crackdown on protesters supporting jailed opposition leader Alexei Navalny as 'deeply disturbing' and said the United States was reviewing possible responses.

“We are deeply disturbed by this violent crackdown against people exercising their rights to protest peacefully against their government, rights that are guaranteed to them in the Russian constitution,” he said. 

Germany and Britain have also called for Navalny’s release.

As reported earlier, the Simonov Court of Moscow replaced Alexei Navalny’s conditional punishment under the Yves Rocher case with real imprisonment for a term of three-and-a-half years.