MOSCOW—Artur Khomenko, an entrepreneur from Minsk, said police officers began beating him with their fists and truncheons after they detained him on the fourth night of huge protests that have weakened Belarusian leader Alexander Lukashenko’s grip on power.
He said they pulled down his underwear and threatened to rape him with a truncheon, before beating him and making him kneel handcuffed with his face toward the floor for four hours, he said.
