Russian investigators allege that servicemen of the Azov regiment of Ukraine's National Guard, namely sergeant M. Ivantsov, senior soldier D. Shevchuk, soldier O. Kukuruza, soldier P. Kuchian, senior soldier I. Bezenchuk, sergeant S. Sumbatyan, performing a "criminal order" of their commander, senior lieutenant M. Zhorin, allegedly were firing from a 100mm artillery system of the 1944-year model on the village of Lebedynske in Donetsk region's Volnovakha district from the village of Bezimenne of Novoazovsk district in the said region from 9:40 to 11:00 local time on May 9.

"For us it is obvious that this offense was committed with particular cynicism. Ukrainian soldiers, having apparently celebrated the national holiday, now on May 8, decided to overshadow the celebration of Victory Day by civilian residents of Donbas. But in such a way they only once again demonstrated their ignorance and disrespect for memory, including of their ancestors who took part in the Great Patriotic War [1941-1945]," the Russian agency accused the Ukrainian servicemen.

Read alsoMoscow court passes four-year suspended sentence for Ukrainian library's ex-headAs UNIAN reported earlier, Russia, in order to justify its aggression, had initiated criminal proceedings against the leaders of Ukraine and chiefs of the Ukrainian security forces, coordinating the country's defenses against Russian invaders. In particular, cases had been brought against Ukrainian Defense Minister Stepan Poltorak, Chief of the General Staff of the Armed Forces of Ukraine Viktor Muzhenko, former Commander of Ground Forces Anatoliy Pushnyakov, former Deputy Commander of Ukrainian National Guard Mykola Balan, and other Ukrainian citizens.

In total, the committee has initiated over a hundred criminal cases against the Ukrainian military for repelling Russian aggression.

"Some 102 criminal cases have been opened since 2014, targeting 90 persons. Basically, they are the soldiers of the Ukrainian army, beginning with the Defense Minister and finishing with the commanders of separate units and formations that directly commit serious international crimes," head of the Russian Federation Investigative Committee Alexander Bastrykin said.

Read alsoFSB hands Ukrainian man detained for alleged espionage in Samara over to "DPR" militantsOn September 30, 2014, the Prosecutor General's Office of Ukraine began criminal proceedings against officials of the Investigative Committee of the Russian Federation for assisting terrorist organizations "DPR" and "LPR" (self-proclaimed Donetsk and Luhansk People's Republics).

On August 8, 2016, the Prosecutor General's Office issued suspicion notices against 18 representatives of the Russian government and the leadership of the Russian armed forces on charges of encroachment on the territorial integrity and inviolability of Ukraine, waging aggressive war, and other crimes.