It was “deeply concerned” by what it described as summary executions of prisoners of war carried out by Russian and Ukrainian forces on the battlefield. The United Nations said at a press conference in Kiev.

Afghan Voice Agency(AVA)_Monitoring, The head of the UN Human Rights Monitoring Mission in Ukraine, Matilda Bogner, said her organization had documented killings, often on the battlefield, by both sides in recent months.

“We are deeply concerned about summary execution of up to 25 Russian prisoners of war and persons hors de combat by the Ukrainian armed forces, which we have documented,” Bogner said at a press conference in Kiev.

“This was often perpetrated immediately upon capture on the battlefield. While we are aware of ongoing investigations by Ukraine authorities into five cases involving 22 victims, we are unaware of any prosecution of the perpetrators,” she added.

Earlier in the day, Russia’s former President Dmitry Medvedev said Russian forces may have to advance as far as Kyiv or Lviv to destroy “infection” in Ukraine.