Sky News meets a group of Russian detainees who say their families do not know what has happened to them.
The Russian prisoners of war – mostly young conscripts – were grouped together in a line of cells along a dimly-lit corridor at a detention site in Ukraine.
They had been captured during a shock advance by Ukrainian troops into Russia’s Kursk region.
Sky News is not showing the detainees in compliance with international law.
But we did talk to some of them – including conscripts, aged between 19 and 21.
Standing together in a cell, next to some bunk beds, the young men described the shock of being taken when Ukrainian troops attacked the Kursk region.
They said it all happened very quickly and they just surrendered.
The men we spoke to said their families did not know what had happened to them and that they hoped to be swapped in any exchange with Ukrainian prisoners of war so they could go home.