KYIV—Kyiv said on Saturday Moscow had reinforced its troops around Sievierodonetsk and attempted to cut off Ukraine’s access to the industrial city, the focus of a Russian offensive to take the eastern Donbass region.
Serhiy Gaidai, governor of Luhansk Province, said Russian forces were blowing up bridges across the Siverskyi Donets river to prevent Ukraine bringing in military reinforcements in Sievierodonetsk.