This is the best summary I could come up with:

Former Ukrainian captives say they were subjected to torture, including frequent beatings and electric shocks, while in custody at a detention facility in south-western Russia, in what would be serious violations of international humanitarian law.

In interviews with the BBC, a dozen ex-detainees released in prisoner exchanges alleged physical and psychological abuse by Russian officers and guards at the Pre-Trial Detention Facility Number Two, in the city of Taganrog.

The testimonies, gathered during a weeks-long investigation, describe a consistent pattern of extreme violence and ill-treatment at the facility, one of the locations where Ukrainian prisoners of war have been held in Russia.

Dmytro Lubinets, Ukraine's human rights ombudsman and one of the officials involved in exchange negotiations with Moscow, said nine in every 10 former detainees claimed they had been tortured while in Russian captivity.

Denys Haiduk, a military surgeon, said guards forced him and the other captives to run with their heads down while under blows during their "reception", with detainees being hit even after they were on the ground, unable to stand up.

The Media Initiative for Human Rights, a Ukrainian organisation, recorded allegations of at least three deaths at the Taganrog prison, apparently because of torture and lack of food and health care.

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