The United Nations is demanding an independent investigation into charges of rape and sexual assault committed by Russian soldiers in Ukraine. Pramila Patten, the U.N.’s special representative on sexual violence in conflict, told the Security Council Monday about multiple shocking reports, ranging from gang rape to coercion, where loved ones are forced to watch an act of sexual violence committed against a partner or a child. European Council President Charles Michel condemned the findings.

Charles Michel: “We hear reports of Russian forces wielding sexual violence as a weapon of war. Sexual violence is a war crime, a crime against humanity, a tactic of torture, terror and repression — shameful acts in a shameful war.”

Michel also said Russia was “solely responsible” for triggering a global food crisis by invading Ukraine. The accusations prompted Russia’s ambassador to the U.N. to storm out of the Security Council meeting in protest.