The United Nations has accused the self-proclaimed Islamic State of a possible genocide against Iraq’s Yazidi minority. Chief U.N. investigator Suki Nagra said all Iraqi communities have been impacted.

Suki Nagra: “No community has been spared in Iraq from ISIL’s violence, including the Yazidis, the Christians, Turkmens, Sabean-Mendaeans, Kaka’e, Kurds, Shia and indeed the Sunni. Essentially, what we’re seeing is the rich ethnic and religious diversity in Iraq that’s been shattered completely.”

The U.N. report also found U.S.-backed Iraqi forces “may have committed some war crimes” while battling ISIS militants.