Russian opposition leader Alexei Navalny was detained at a Moscow airport after returning from Germany on Sunday, the prison service said.
The prison service said he was detained for multiple violations of parole and terms of a suspended prison sentence and would be held in custody until a court makes a decision in his case.
Navalny, who is President Vladimir Putin’s most prominent and determined foe, had spent the previous five months in Germany recovering from a nerve agent attack that he blamed on the Kremlin. Navalny decided to leave Berlin of his own free will and wasn’t under any apparent pressure to leave from Germany.
The prison service made the announcement after the flight carrying Navalny landed in the Russian capital, though at a different airport than had been scheduled. It was a possible attempt to outwit journalists and supporters who wanted to witness Navalny’s return.
Russia’s prison service last week issued a warrant for his arrest, saying he had violated the terms of suspended sentence he received on a 2014 conviction for embezzlement. The prison service has asked a Moscow court to turn Navalny’s 3 1/2-year suspended sentence into a real one.
After boarding the Moscow flight in Berlin on Sunday, Navalny said of the prospect of arrest: “It’s impossible; I’m an innocent man.”
The Kremlin has repeatedly denied a role in the opposition leader’s poisoning.
Navalny supporters and journalists had come to Moscow’s Vnukovo Airport, where the plane was scheduled to land, but it ended up touching down at Sheremetyevo airport, about 40 kilometers (25 miles) away. There was no immediate explanation for the flight diversion.
The OVD-Info group, which monitors political arrests, said at least 37 people were arrested at Vnukovo Airport, although their affiliations weren’t immediately clear.
Vnukovo banned journalists from working inside the terminal, saying in a statement last week that the move was due to epidemiological concerns. The airport also blocked off access to the international arrivals area.