Part of the missile that downed MH17 / REUTERS

Ukraine will add the fact of the delivery of the Russian-made Buk missile system to Donbas, which shot down Malaysia's MH17, to a memorandum on the financing by Russia of terrorism.

"The fact that everybody knew why Russia used its veto at the UN Security Council in 2015 and blocked the creation of a tribunal to investigate the circumstances of the crash of the MH17 flight has been proven today," Ukrainian Deputy Minister of Foreign Affairs for European Integration Olena Zerkal said on Facebook after a report by the Joint Investigation Team (JIT) on MH17. "But even such a bold move cannot let individuals involved in the downing the plane and the state that supplied such a powerful weapon escape responsibility."

The memorandum will be submitted to the International Court of Justice on June 12.

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"The transportation by the 53rd anti-aircraft brigade of the Russian Federation's Armed Forces of the Buk used to shoot down MH17 is direct evidence of Russia's supply of weapons used to down a civilian aircraft, a violation of the 1971 Montreal Convention and the International Convention for the Suppression of the Financing of Terrorism," she said.

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Zerkal recalled that it was decided in 2017 that the court of the Netherlands would consider a criminal case against persons involved in the downing of MH17. Ukraine concluded a respective agreement with the Netherlands. "The [Ukrainian] government has carried out all the necessary procedures and submitted proposals to the president to ratify the agreement and amend legislation for its implementation," she said.

The diplomat also noted that the JIT "has brilliantly been conducting a highly complex investigation without access to the crime scene and most of the witnesses."

"We are all aware that under such conditions it is impossible to carry out an investigation quickly, but we are sure of an independent and professional investigation," she wrote, stressing that "the perpetrators, accomplices and those who ordered the crime will be tried in the Kingdom of the Netherlands."