More than 15,000 people have gone missing during the war in Ukraine, an official at the International Commission on Missing Persons (ICMP) said on Thursday, Reuters reported.

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The Hague-based organisation, created in the wake of the Balkan wars of the 1990s, opened an office in Kyiv in July to help Ukraine to document and track down missing people.

The ICMP’s programme director for Europe, Matthew Holliday, said it was unclear how many people had been forcibly transferred, were being held in detention in Russia, were alive and separated from their family members, or had died and had been buried in makeshift graves.