Some 100,000 Ukrainians have left their homes, as several thousand flee abroad -U.N. estimates

People cross the border from Ukraine into Romania at Siret Customs, in Suceava, Romania, February 24, 2022. Inquam Photos/Casian Mitu via REUTERS ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. ROMANIA OUT. NO COMMERCIAL OR EDITORIAL SALES IN ROMANIA

Several thousand Ukrainians have crossed into neighbouring countries, mainly Moldova and Romania, while an estimated 100,000 have fled their homes and are uprooted in the country after Russia's invasion, the U.N. refugee agency said on Thursday.

Shabia Mantoo, spokesperson of the U.N. High Commissioner for Refugees (UNHCR), said the figures were compiled from reports from national authorities and its staff and partner agencies. "It's a ballpark figure," she told Reuters.

(Reporting by Stephanie Nebehay; Editing by Chris Reese)