Ukrainian forces prepared Friday to retreat from the strategic city of Severodonetsk after weeks of fierce fighting, a setback that could pave the way for Russia to seize a large swathe of eastern Ukraine.
Moscow said it had encircled about 2,000 Ukrainian and what it called foreign troops in the area.
莫斯科表示,它已经在该地区包围了大约2000名乌克兰士兵和所谓的外国军队。
Reuters could not independently verify any of the battlefield accounts.
路透社无法独立核实任何有关战场的报道。
The reports came four months to the day since Russian President Vladimir Putin sent tens of thousands of troops over the border, unleashing a conflict that has killed thousands, uprooted millions and reduced whole cities to rubble.