Moscow steps up assault in eastern Ukraine as Kyiv calls for 'ban' on Russians

Russia unleashed ground forces, air strikes and artillery as it pressed ahead with a grinding offensive designed to complete its capture of eastern Ukraine, but Kyiv said its troops were putting up fierce resistance and holding the line.

Heavy fighting was reported on Tuesday in frontline towns near the eastern city of Donetsk, where Ukrainian officials said Russian troops were launching waves of attacks as they tried to seize control of the industrialised Donbas region.

"The situation in the region is tense - shelling is constant throughout the front line...