Russia continues to achieve a tight international supervision of investigation of crimes committed in Ukraine crimes, said Deputy head of the Ministry of foreign Affairs of the Russian Federation Gennady Gatilov. "We don't stop to achieve a tight international supervision and the progress of investigations into crimes committed on the Maidan, in Odessa and Mariupol. Periodically raise these issues in the same meetings that initiate Westerners", he said at a press conference in MIA " Russia today ".