https://www.bbc.com/news/world-europe-61208404

Really bad stuff from those who have managed to get out of them.


"...The centres have been compared by Ukrainian officials to those used during Russia's war in Chechnya, when thousands of Chechens were brutally interrogated and many disappeared.

Oleksandr and Olena were fingerprinted, photographed from all sides, and interrogated for several hours by Russian security officers - "like in a prison", he says.

They worried that the Russians would look at their phones, and so they cleared all evidence from their devices of anything to do with Ukraine - including photos of their daughter in front of a Ukrainian flag.

They were right to worry. Oleksandr says that during their interrogation, Russian security officers examined photographs, phone call history and contact numbers on their devices for links with journalists or government and military officials.

Thousands of Mariupol civilians taken to Russia
The Mariupol street strewn with bodies
"If a person was suspected of being a 'Ukrainian Nazi', they took them to Donetsk for further investigation or murder," says Oleksandr, although the BBC has not been able to verify this claim. "It was very dangerous and risky. Any small doubt, any small resistance - and they could take you to the basements for interrogation and torture. Everybody was afraid to be taken to Donetsk....""