(Interfax) - A police officer was fatally wounded inn an attack in Grozny on Saturday. "Unidentified assailants opened gunfire from a ruined building at a patrol vehicle carrying three police officers in Grozny's Oktyabrsky district. One of the policemen was fatally wounded," a source in law enforcement services told Interfax on Sunday. Five expended cartridges were discovered at the scene of the attack, he said.