Russia has launched a sick catalogue for kidnapped Ukrainian children being offered up for adoption who are sorted for hair and eye colour.

The database, revealed by the head of a Ukrainian NGO, holds information on 294 children and is available on the education department of occupying Russian authorities in the Luhansk region.

Mykola Kuleba, CEO of the Save Ukraine organisation, wrote in an Instagram post: 'Most children in this catalog were born in Luhansk Oblast before the Russian occupation and had citizenship.'

'Parents of some of them were killed by occupation authorities, others were simply issued Russian identification documents to legitimize their abduction.'

The database describes the children as 'orphans and children left without parental care.'