(Reuters) – Russia’s defence ministry said on Saturday that the eastern Ukrainian town of Lyman had fallen under the full control of Russian and Russian-backed forces in the region. Pro-Russian separatists from the self-proclaimed Donetsk People’s Republic had said on Friday that they had fully captured the town, a railway hub west of Sievierodonetsk. Ukraine said on Friday that Russia had captured most of Lyman but that its forces were blocking an advance to Sloviansk, a city 20 kilometres (12 miles) southwest. Ukrainian and Russian forces have been fighting for Lyman for several days. In a d…