"Fighting in eastern Ukraine this year has resulted in over half a million people becoming internally displaced, while hundreds of thousands have fled to Russia and other neighbouring countries," UNHCR said in a statement emailed to journalists.
"In Ukraine, most internally-displaced persons remain in regions close to the conflict, including the eastern city of Kharkiv (118,000) and government-controlled territories in Donetsk (76,000) and Luhansk (30,000), as well as in the Zaporizhzhia (51,000) and Dnipropetrovsk (48,000) regions," the statement added.
Following the February coup in Kiev, residents of the Donetsk and Luhansk regions in eastern Ukraine established people's republics that later declared their independence. The Ukrainian crisis escalated in mid-April, when Kiev launched a military offensive against the independence supporters.
The conflicting sides agreed on a ceasefire on September 5 at a meeting of the trilateral Contact Group on Ukraine in Belarusian capital Minsk and signed a memorandum specifying the ceasefire's implementation on September 19. However, both sides have subsequently accused each other of violating the truce.