More than 2,400 children from Ukraine aged between six and 17 years old have been taken to 13 facilities across Belarus since Russia’s invasion of Ukraine, research published by Yale University said on Thursday.

Ukraine’s prosecutor general said in May that he was investigating the alleged role of Belarus in the forced transfer of more than 19,000 identified children from Russian-occupied territories since the conflict broke out, including to Russia.

The total number is estimated by some experts and organisations to be far higher.