Ukraine's security agency says it has killed Russian agents suspected of assassinating a senior officer in Kyiv

Ukraine’s Security Service said Sunday they had killed Russian special service agents suspected of gunning down a fellow officer in Kyiv earlier this week, saying it believed Russia’s Federal Security Service was responsible.

Ukrainian intelligence agents on Sunday killed members of a Russian secret service cell wanted on suspicion of having shot dead a colonel in Ukraine's SBU security service last week, the SBU said.