According to an official, two children’s remains were among the 146 bodies exhumed from a mass burial site near Izyum in eastern Ukraine.
Authorities said Monday that many of the victims were civilians. Some are even believed to have been tortured and then died violently.
After the liberation of the city from Russian occupation by Ukrainian forces, the mass gravesite containing 440 graves were discovered.
After a counter-offensive in Kharkiv, the city was reclaimed.
Oleh Synehubov (the Kharkiv governor) said that two children were among Izyum’s bodies.
He said that some of the deceased had signs of a violent death.
“There are many bodies with tied hands and evidence of torture.”
He added that the deceased had also been found to have shrapnel, explosive and stab wounds.
Wearing white protective suits and rubber gloves, forensic specialists spent many days carefully exhuming and identifying bodies that were buried in makeshift graves with wooden crosses.
President Volodymyr Zeleskyy was captured in the newly-recaptured, raising his country’s yellow and blue flags in a show last Wednesday.
After the discovery of the burial ground, Andriy Yaermak, Mr Zelenskyy’s chief of staff, called Russia a “murderer nation” and a “state sponsor of terror”.
Dmitry Peskov (Kremlin spokesperson) dismissed Ukraine’s claims as “lie”.
Last Thursday’s nightly address to nation, Mr Zelenskyy stated: “We want the whole world to see what’s really happening and where the Russian occupation has lead to.”
“Bucha, Mariupol, and now, unfortunately Izyum.
“Russia leaves death everywhere. It must be held responsible for this. Russia must be held accountable for the war.
The US President Joe Biden had previously called Vladimir Putin a “war crime” in reference to civilian deaths in Bucha, Kyiv.
According to Ukrainian officials, some were shot in the head while their hands were tied behind their backs.
Moscow categorically denies being behind the massacre.
photographs from Mariupol showed how the city was “completely destroyed” by weeks of constant bombardment by Kremlin troops.
In the aftermath of an apparently Russian airstrike, dozens of people who had been sheltering in a theatre were killed. This was despite the fact that the building was marked with the word “children” in an effort to discourage an aerial attack.