The UN human rights office said on Friday that there was growing evidence of Russian war crimes in Ukraine, including indiscriminate shelling and summary killings, and that Ukraine looked to have used indiscriminate weaponry as well.

"Russian armed forces have shelled and bombed populated areas indiscriminately, killing civilians and destroying hospitals, schools, and other civilian infrastructure, actions that may amount to war crimes," according to Michelle Bachelet's office at the United Nations High Commissioner for Human Rights.

Human rights monitors from the United Nations in Ukraine have also reported what appears to be the use of weaponry with indiscriminate effects, resulting in civilian casualties, by Ukrainian armed forces in the country's east, according to the OHCHR.

Russia denies targeting civilians or committing war crimes, describing its assault as a "special military operation" to disarm and "denazify" Ukraine. According to the OHCHR, civilian casualties totalled 5,264 from the start of the war on February 24 to April 20 in Ukraine, with 2,345 killed and 2,919 injured.

As per reports, 92.3 percent occurred in government-controlled territory, while 7.7% occurred in the Donetsk and Luhansk areas, which are held by Russian armed forces and allied parties.  "As the horrors inflicted in regions of intensive conflicts, such as Mariupol, come to light, we know the exact numbers will be considerably higher," Bachelet added.

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