"I've just signed an inquiry on the extradition of the political prisoner Oleksii Chernii according to his own statement," Petukhov wrote.
Oleksi i Chernii was detained in Crimea in 2014 in the framework of the case of the so-called "terrorist Sentsov-Kolchenko group".
"According to Russian investigators, the plans of our guys to demolish a Lenin monument were qualified as "terroristic". Chernii was transferred to different corners of Russia, such as Magadan, Lefortovo [prison -ed.], the Rostov region. Sometimes there was no information about his whereabouts. Ukrainian consul was not allowed to visit him for a while. We will not leave him until he returned to Ukraine," Petukhov added.
As reported earlier, Russia has denied Ukraine the transfer of Crimean activist Oleksandr Kolchenko sentenced to 10 years in prison by Russia's court.
Since the beginning of Russia's military aggression against Ukraine, several Ukrainian citizens have been taken hostage by the Kremlin. The exact number of Russian-held Ukrainians is unknown. At this point, according to official data, some 20 Ukrainians are being held for political reasons in Russian prisons, including in occupied Crimea. The story of captive Ukrainian pilot Nadiia Savchenko caused a massive public outcry.
Hennadii Afanasiev and Yurii Soloshenko were among the Ukrainian political prisoners held in Russia. Afanasiev was sentenced to seven years in prison as a suspect in the case against Ukrainian film-maker Oleh Sentsov charged with organizing a terrorist group in occupied Crimea and sentenced to 20 years in prison. Afanasiev was tried under a special procedure after he agreed to testify against other defendants. However, at the trial of Sentsov and Oleksandr Kolchenko, Afanasiev refused to testify, claiming torture during interrogation.