The UN commission, which was set up in May to investigate claims of war crimes, found evidence. The investigators found that the Russian military was behind the crimes.
DW writes about this with reference to the head of the Commission of Inquiry of the UN Human Rights Council.
So far, investigators are focused on four regions: Kyiv, Kharkiv, Sumy and Chernihiv.
"We were struck by the large number of shootings in the areas we visited. Currently, the commission is investigating similar deaths in 16 cities and towns," the commission chairman Eric Mose noted.
The UN investigators spoke with more than 150 victims and witnesses, and visited 27 cities and towns, where they investigated mass burials, as well as detention and torture centers.
The commission established that the Russian military purposefully bombed Ukrainian cities, including civilian objects. They often used banned cluster ammunition. The Russians also actively practiced torture, illegally imprisoned and raped children, in particular. The age of the victims ranged from 4 to 82 years.