MOSCOW, July 17 (RAPSI) – Investigators have filed a motion with Moscow’s Lefortovsky District Court seeking to extend detention of Norwegian citizen Frode Berg charged with espionage until October 5, the court’s spokesperson Yekaterina Krasnova has told RAPSI.

The court will hear the motion on July 18.

According to media reports, the defendant was arrested when he received secret documents containing information on Russian navy. These papers were allegedly given to him by Russian national Alexey Zhitnyuk, who was detained in December on suspicion of treason.

Berg has pleaded not guilty to spying.