According to the report, the detainees are a Ukrainian serviceman sent to Moscow by the Security Service of Ukraine, a Moldovan citizen, and a Russian citizen MOSCOW, April 14. /TASS/. Agents of the Russian Federal Security Service (FSB) detained three plotters of the prevented terrorist act against a high-ranking security official near a business center in Moscow on April 2. The detainees are a Ukrainian serviceman sent to Moscow by the Security Service of Ukraine (SBU), a Moldovan citizen,