Ukraine's security agency says it killed Russian agents suspected of gunning down its officer

Ukraine's security agency said Sunday it tracked down and killed Russian agents suspected of shooting one of its senior officers to death in the Ukrainian capital. The Security Service of Ukraine, or SBU, said in a statement that the suspected Russian agents were killed in the Kyiv region after they offered resistance to arrest. The agency said earlier that a man and a woman were suspected to be involved in Thursday's assassination of Ivan Voronych, an SBU colonel, in a bold daylight attack that was caught on surveillance cameras.