 In June 2007, a group of Russian geologists returned from a six-week voyage on a nuclear icebreaker 50 Let Pobedy, the expedition called Arktika 2007.They had travelled to the Lomonosov ridge, an underwater shelf going between Russia's remote, inhospitable eastern Arctic Ocean, and Ellesmere Island in Canada where the ridge lies 400m under the ocean surface.According to Russia's media, the geologists returned with the "sensational news" that the Lomonosov ridge was linked to Russian Federation territory, boosting Russia's claim over the oil-and-gas rich triangle.