Ukrainian officials completed the exhumation of 436 bodies from a mass burial site in Izium on Friday, according to Oleh Syniehubov, head of the Kharkiv region military administration.
Most of the bodies have signs of violent death, and 30 have traces of torture, Syniehubov said in a Telegram post.
"There are bodies with a rope around the neck, with hands tied, with broken limbs and with gunshot wounds. Several men had their genitals amputated. All this is evidence of the terrible torture to which the occupiers subjected the residents of Izium. Most of the bodies are civilians, 21 are military," he said.
Syniehubov vowed to find out the circumstances of each of their deaths "so that their relatives and friends know the truth and the killers are punished."
He thanked 200 individuals — forensic experts, police officers and employees of the State Emergency Service, who he said had been working there every day for their "morally difficult but necessary work."
Syniehubov also said there are at least three more mass burial sites in other liberated areas of the Kharkiv region.
"All crimes of the occupiers will be documented, and the perpetrators will pay for what they have done," Syniehubov said.