ATHENS, March 5. /TASS/. Russian citizen Yevgeny Kalinin, detained in Athens at Ukraine’s request, believes he fell prey to a political order, according to his letter that his lawyer gave to TASS’ office in Greece on Tuesday.

"I am writing this address from a Greek prison where the Ukrainian regime had placed me with the help of a Greek prosecutor. This person decided that the arrest warrant that was presented by Ukraine and demanded my extradition and that was not approved by Interpol was a sufficient basis for destroying my professional reputation and my good name, as well as inflicting sufferings and pain to my family," the text says.

The lawyer earlier said that Kalinin was arrested and taken into custody illegally, as Ukraine’s request had not been approved by Interpol. He reiterated that Kalinin was the head of an oil refinery in Odessa in 2011-2013. The Russian himself worked in Ukraine then, but he is living in Moscow now.