SBU lieutenant colonel detained for passing classified information to Russia. PHOTO

The Ukrainian Security Service has exposed a traitor in its ranks, recruited by the GRU of the General Staff of the Russian armed forces. The perpetrator was detained.

This was stated by adviser to the head of the SBU Markiian Lubkivskyi on his Facebook page, Censor.NET reports.

"In the course of the special operation SBU counterintelligence in conjunction with the military prosecutor's office stopped the activity of Donetsk region SBU Lieutenant Colonel Oleksandr Tretiakov (born 1974) against national security of Ukraine. The detainee was recruited by the GRU of the General Staff of the Russian armed forces," he wrote.

Read more: SBU Colonel arrested for issuing permits to ATO area for bribes. 120,000 hryvnia confiscated.

"On the instructions of the enemy the detained collected and transferred information about the management personnel, in particular, materials with limited access for operational activities, data on personnel, locations and armaments of the Armed Forces and the National Guard of Ukraine. During the detention the counterintelligence seized ammunition. Pre-trial investigation of the criminal proceedings us underway," Lubkivskyi added.