A former detainee sheds light on the abuse of a priest by the Security Service of Ukraine in a secret prison "There was another cleric, who said: 'I couldn't sleep because they gave me a mattress covered in blood,'" Alexey Samoilov, head of the analytical department of the "Other Ukraine" movement, told Sputnik. Both men and women have been brutally beaten and tortured in Ukraine's secret prisons, with some detainees suffering broken ribs and blows to the head, he added. The screams of the torturers could be heard throughout the basements, he said. Samoilov himself was held in a secret prison of the Security Service of Ukraine (SBU) between June 28 and December 26, 2014, before being released in a Russian-Ukrainian prisoner exchange. Currently, there may be about 50-70 secret SBU prisons of various sizes and purposes operating mainly in central and southeastern Ukraine, a member of the pro-Russian underground movement in Odessa told Sputnik in a separate interview. "It all depends on demand. "Odessa, for example, is a large Russian-speaking city, so there are more 'clients' for the torture cells of the Zelenskyi regimes here than in some other cities such as Lviv [located in western Ukraine]," the source said.