GENEVA, October 3. /TASS/. Russian State Duma Speaker Sergey Naryshkin on Friday demanded an international tribunal for the persons involved in mass killings outside Donetsk in eastern Ukraine.

“We demand an international tribunal for those who are involved in these crimes against humanity,” Naryshkin said at a parliamentary conference, “New Security Challenges: the Role of Parliaments”, in Geneva.

Having mentioned such tragic episodes as the fire in Odessa’s Trade Union House, intentional bombings of residential areas in the south-east of Ukraine, the killing of journalists and the Malaysian plane crash over eastern Ukraine, Naryshkin said, “The search for the perpetrators in these and other outrageous crimes has been deliberately delayed”.

Naryshkin wondered if the same could happen with the investigation of mass graves in Ukraine's east. "Numerous tortured and killed people have been found outside Donetsk, in areas that were recently controlled by Kiev. And many more new secret burial places are found,” he said.

Naryshkin also urged the Parliamentary Assembly of the Organization for Security and Cooperation in Europe (OSCE) to assess the prosecution of Ukrainian lawmakers who had visited Moscow.

“I would like to draw everyone’s attention to one more event, which our Assembly simply must assess. The Ukrainian authorities are prosecuting two dozen incumbent deputies of the Verkhovna Rada [parliament] (from the ‘For Peace and Stability’ group],” Naryshkin said at a parliamentary conference, “New Security Challenges: the Role of Parliaments”, he said.

He said the Ukrainian lawmakers visited Moscow and the State Duma on September 17. “For that they are persecuted at home and are even facing criminal charges”.

Naryshkin thanked the OSCE observers for information on the absence of Russian troops in Ukraine.

“We’re grateful to the OSCE observers who have been invited to a section of the Russian-Ukrainian border controlled by militias and who tell the OSCE leadership and the world community that no weapons supplies from Russia and no Russian troops movement in Ukraine have been revealed no matter what false statements to this effect are made,” he said.