“It is horrifying to see that the children who came to save their lives in the artificial kidney center were ruthlessly killed by Russian criminals,” the prelate said in the release. 

Russia has denied responsibility for the attack.

The bishop said that many of the children in the hospital “were on the verge of death” at the time of the strike, according to the news release, with many “undergoing surgery at the time.”

“In the name of God, with all our resolve, we condemn this crime against humanity,” the archbishop said. 

Rescue workers were still clearing the rubble, Sviatoslav said, but “we already know about dozens of dead and around a hundred injured.”

First responders were “standing in a chain and dismantling stones to save more children whose hearts are beating under the rubble,” he said.