Every person interrogated by Russian FSB employees was subjected to harassment in occupied Kupyansk, the Security Service of Ukraine has said.
During interrogations, the FSB officers beat local residents to learn the names and addresses of ATO participants, territorial defence fighters, and persons who had a pro-Ukrainian stance. They threatened to execute them on a minefield and take revenge on the families left in occupied territories.
"At the first interrogation, they electrocuted me for 40 minutes, shot me with a pneumatic or gas gun, I don't know - I was in a sack... They beat me with bats or iron pipes," says a victim of Russian torture.
Some of the detainees had crosses burned on their bodies with blowtorches.
The conditions of the illegal detention of the Ukrainians were appalling: eight people were held in a small cell designed for two people.
"Such actions of the Russian occupying troops fall under the scope of torture and other cruel, inhuman or degrading treatment or punishment. This is clearly stated in the 1984 UN Convention against Torture to which the Russian Federation is a party," the SBU said.
Currently, the SBU is carrying out operational and investigative actions to identify all residents of the deoccupied territories who suffered from Russian torture.
The SBU is doing its best to identify everyone involved in committing war crimes against civilians in Ukraine. For each such crime, they will have to answer in international courts.