(QHA) -

More than one million people have been driven from their homes by the conflict in Ukraine, hampering aid efforts and leaving the country on the verge of a humanitarian catastrophe, aid agencies said on Thursday.

The number of people uprooted within Ukraine, 610,000, and of refugees who have fled to neighboring countries, 594,000, has more than tripled since August, figures from the United NationsOffice for the Coordination of Humanitarian Affairs (OCHA) show.

The U.N. said an estimated 5.2 million people in Ukraine were living in conflict zones, of whom 1.4 million were highly vulnerable and in need of assistance as they face financial problems, a lack of services and aid, and harsh winter conditions.

QHA