"Interception of radio and phone conversations by the Security Service of Ukraine irrefutably indicates that the given attack was organized by terrorists supported by Russia," he said.

According to the Head of State, the evidence is also Russia's blocking of the UN Security Council's statement and its silence on assessments of the terrorists' actions in Donetsk and Luhansk regions - regarding the attack on Volnovakha, shameful behavior with Ukrainian war prisoners and tragedy at the trolleybus stop in Donetsk.