Dozens of Ukrainian orphans and their carers were due to fly from Poland to the UK on Monday - but they're still stuck in Poland because of missing documentation.
The 46 youngsters are from orphanages in and around the Ukrainian city of Dnipro.
Their journey was organized by a Scottish charity called Dnipro Kids, which was set up by supporters of Hibernian Football Club in the Scottish capital Edinburgh.
The flight was set to depart from Warsaw bound for London, and from there to Scotland.
Missing paperwork from the Ukrainian authorities, however, has left them stuck in a Warsaw hotel until the matter can be cleared up.
The important industrial city of Dnipro, in eastern Ukraine, has been the target of Russian airstrikes.
The British government has supported the effort to bring the orphans to safety.
UK Home Secretary Priti Patel said last week that the British authorities were working with Poland and Ukraine "to ensure the children's swift arrival to the UK."
The children, who come from several orphanages in the Dnipro region, were brought to Lviv and then to Poland, where they have been waiting for two weeks to fly to the UK.