Russian activist Andrei Pivovarov, a prominent critic of the Putin administration who is serving a four-year prison sentence over his political activities, has not been reachable for several weeks, stirring concern among those close to him. Last his relatives heard, he was being transferred to a new detention site. âWe donât know if heâs alive; if heâs feeling well; if heâs being tortured or abused somehow,â his partner, Tatyana Usmanova, told the Associated Press. âWe donât know anything.â The director of Amnesty Internationalâs Russia operations, meanwhile, blasted Pivovarovâs detention on âpolitically motivated charges for a âcrimeâ that doesnât exist in international law.â