MOSCOW, September 16 (RAPSI) – The Supreme Court of Russia has dismissed an appeal against a14-year prison sentence passed on Polish citizen Marian Radzaevsky for espionage, the press service of Russia’s Federal Security Service (FSB) reports Monday.

The Moscow City Court convicted and sentenced Radzaevsky in June. The trial was held behind closed doors as the case was classified.

According to the investigation, Radzaevsky, speaking Russian fluently, has tried to organize trafficking of confidential information military-technical products from Russia to Poland. He was arrested on April 20, 2018, while attempting to purchase parts of the S-300 surface-to-air missile system to next transport the components to Poland.

It was found that the defendant operated in the interest of a Polish organization specialized in arms delivery to the army and special forces.