Russia’s prison service said opposition leader Alexei Navalny was detained at a Moscow airport after returning from Germany on Sunday. 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…

MOSCOW—Police detained prominent Kremlin critic Alexei Navalny on arrival at a Moscow airport on Sunday after he flew home to Russia from Germany for the first time since he was poisoned last summer. The move, which could see Navalny jailed for 3.5 years for allegedly flouting the terms of a suspended prison sentence, is likely…