KIEV, Dec. 18 – Security Service Chief Valentyn Nalyvaichenko has refuted the information about the involvement of the SBU into an attempt by employers of a Ukrainian company to smuggle from Russia technical documents and a sample of a state-of-the-art Russian device capable of protecting aircraft from interception by man-portable air defense systems (MANPADS).

"I officially deny this information. The SBU has no relation to this citizen and to the situation reported in mass media," the SBU chief told reporters in Kiev on Friday.