GENEVA: UNICEF is trying to reunite hundreds of Afghan children who were separated from their families and evacuated to various countries during the hurried US withdrawal from the country, the UN agency said on Tuesday.

Hundreds of children were separated in the chaotic scenes at Kabul airport and UNICEF is trying to get them back together with their families, spokesperson James Elder told a UN briefing in Geneva.

"They have gone to a range of countries and we are working with those governments where children have arrived without family support," he said, adding that more than 100 of the children are back with family members.

Dramatic footage last month showed a small girl lifted up over the high perimeter wall of the airport and passed into the hands of an American soldier. It was not clear whether the girl was reunited with her family within the airport.