MOSCOW, Aug 29 – Ukraine's Naftogaz has referred to the Nord Stream 2 project as a "predatory" investment, Russia's Gazprom said in a financial report, detailing a complaint filed by Naftogaz against Gazprom with the European Commission in May.

"On May 7, 2019 the European Commission received a complaint from Naftogaz Ukrainy stating that PJSC Gazprom and its subsidiaries allegedly violated Article 102 of the Treaty on the Functioning of the European Union," Gazprom said.