The United States is “deeply concerned” by a meeting between a leading United Nations official for children and Russia’s ombudsman for children’s rights, who is wanted by the world’s permanent war crimes court, State Department spokesperson Matthew Miller said on Wednesday.

Maria Lvova-Belova, who is accused by the International Criminal Court’s prosecutor of the war crime of deporting hundreds of Ukrainian children to Russia, said on her website last week that she held a working meeting with Virginia Gamba, the special representative of the UN secretary-general for children and armed conflict.