STORY: "Russian armed forces have indiscriminately shelled and bombed populated areas, killing civilians and wrecking hospitals, schools and other civilian infrastructure, actions that may amount to war crimes," the spokeswoman for the office of U.N. High Commissioner for Human Rights (OHCHR) Ravina Shamdasani said.
U.N. human rights monitors in Ukraine have also documented what appeared to be the use of weapons with indiscriminate effects, causing civilian casualties, by Ukrainian armed forces in the east of the country, she said.
The OHCHR said that from the start of the war on February 24 until April 20, monitors in Ukraine had verified 5,264 civilian casualties - 2,345 killed and 2,919 injured.
Of these, 92.3% were recorded in government-controlled territory and 7.7% in the Donetsk and Luhansk regions controlled by Russian armed forces and affiliated groups, it added.
They have received more than 300 allegations of killings of civilians in the regions of Kyiv, Chernihiv, Kharkiv and Sumy, all under the control of Russian armed forces in late February and early March, Shamdasani said.