KYIV, Nov 9 – Ukraine security service SBU has detained an alleged head of a notorious illegal prison set up in Russia-controlled Donetsk that was involved in torture and murder of Ukrainian servicemen.

Denis Kulikovsky, who is also known as "Palych,” was detained in the Ukrainian capital, Kyiv, on Tuesday night, Ukraine's Interior Ministry said.

He is accused of running an illegal prison known as "Izoliatsiia," or "Isolation," in the occupied Donetsk region of eastern Ukraine.