Kyiv: A missile attack on a prison in Donetsk province in eastern Ukraine. According to the Russian Defense Ministry, 53 prisoners were killed. 75 people were injured. The prison in the rebel-held town of Olenivka was destroyed. Russia and Ukraine have blamed each other for Friday's attack.

Russia has accused Ukrainian forces of using US-made Hymars missiles. However, Ukraine blamed Russia for the attack on the prison. Ukrainian prisoners of war were held here. There were 193 people including foreigners.

Ukrainian President Volodymyr Zelenskyy said the ICRC and the United Nations have a duty to react to the shelling of the prison complex in Ukraine's eastern Donetsk province, and he called again for Russia to be declared a terrorist state.

"Condemnation at the level of political rhetoric is not enough for this mass murder," he said.

Russia's Defense Ministry on Saturday issued a list naming 48 Ukrainian fighters, aged 20 to 62, who died in the attack.

Both Ukraine and Russia alleged the attack on the prison was premeditated and intended to silence the Ukrainian prisoners and destroy evidence.

The ICRC, which has organized civilian evacuations and worked to monitor the treatment of POWs held by Russia and Ukraine, said it requested access to the prison "to determine the health and condition of all the people present on-site at the time of the attack."

"Our priority right now is making sure that the wounded receive lifesaving treatment and that the bodies of those who lost their lives are dealt with in a dignified manner," the Red Cross said.

But the organization said late Saturday that its request to access the prison had not been granted yet.

"Granting ICRC access to POWs is an obligation of parties to conflict under the Geneva Conventions," the ICRC said on Twitter.

Russia claimed Ukraine's military used U.S.-supplied precision rocket launchers to target the prison in Olenivka, a settlement controlled by the Moscow-backed Donetsk People's Republic.

The Ukrainian military accused the Russians of shelling the prison to cover up the alleged torture and execution of Ukrainians there.