The plane carrying Russian opposition leader Alexei Navalny has landed in Moscow.
Mr Navalny was detained at a Moscow airport on Sunday after spending five months in Germany recovering from nerve agent poisoning that he blames on Moscow.
Mr Navalny’s detention has been condemned by governments around the world, with the European Union, Germany and the US all speaking out about the arrest.
US secretary of state Mike Pompeo said he was “deeply troubled” by Mr Navalny’s arrest, while adding a veiled criticism of Russian president Vladimir Putin.
“Confident political leaders do not fear competing voices, nor see the need to commit violence against or wrongfully detain, political opponents,” he said.
Prior to Mr Navalny’s arrival at Moscow’s Sheremetyevo airport, Russia’s prisons service said the 44-year-old has violated parole terms from a suspended sentence on a 2014 embezzlement conviction. Officials said he would be held in custody until a court rules on his case.