The shelling of the prison in Olenivka left more than 50 dead.
At a time when many Ukrainian cities are under bombardment, kyiv and Moscow are turning the responsibility for the deaths of more than 50 detainees in the Donetsk region, an area controlled by pro-Russian separatists in the east of the country.
Ukrainian President Volodymyr Zelensky spoke of a deliberate war crime by Ukrainian prisoners of war.
According to him, the UN and the International Committee of the Red Cross have a duty to react . There should be clear legal recognition of Russia as a state sponsor of terrorism, he added.
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We view the Olenivka attack as an act of public execution committed by Russia with impunity, Azov Regiment Acting Commander Mykyta Nadtotchy said.
Those responsible for this act will be found wherever they are and Ukraine as a state will ensure that they are justly punished, he said. added it.
On Friday, Russia directly accused the Ukrainians of being responsible for the attack. Its Investigative Committee alleges that Ukrainian forces fired on the prison where members of the Azov Battalion were being held using US projectiles from the HIMARS system.
The Ukrainian head of human rights defender Dmytro Lubinetsk said on Saturday he had asked the Red Cross for access to Olenivka. According to him, the ICRC has not obtained permission from the Russians for now.
“This barracks was built separately. For us, this is an indicator that this was a premeditated Russian military operation. Based on preliminary data, we assume the explosion occurred indoors.
— Dmytro Lubinetsk, Ukrainian human rights official
According to Mr. Lubinetsk, this version is confirmed by the fact that the nearby barracks were not damaged, even the windows were not broken. Likewise, ''miraculously''the Russian soldiers were not injured.
The Ambassador British in Ukraine, Melinda Simmons, also called for an investigation into what happened in Olenivka.
A destroyed barracks in a prison in Olenivka, in an area controlled by Russian-backed separatist forces, in eastern Ukraine.
Ukrainian diplomacy has denounced calls to hang or inflict another humiliating death on the fighters of the Ukrainian Azov regiment after the attack on the prison complex in Olenivka.
kyiv reacted to the tweet broadcast Friday evening in English from the& #x27;Russian Embassy in UK. Azov fighters deserve to be executed, but not by firing squad, by hanging. They are not real soldiers. They deserve a humiliating death, we can read.
Russia is a terrorist state, replied President Zelensky's chief of staff on the social network Telegram. In the 21st century, only savages and terrorists can say at the diplomatic level that people deserve to be executed by hanging, he added.
With information from Agence France -Press, and Associated Press