Russia has deployed about 5,000 soldiers in eastern Ukraine to back separatist rebels, a Defense Ministry official in Kyiv said as fighting flared up on Sept. 18 at Donetsk airport.
Russia's War Against Ukraine
Bloomberg: Ukraine sees more Russian troops in east, fighting flares
A rocket shelling near the front line in Zuivka, 50 kilometers east of Donetsk, eastern Ukraine, on Sept. 18.