Erik Møse, Chair of the Independent International Commission of Inquiry on Ukraine, told the Geneva-based Human Rights Council on Friday that "war crimes" have been committed in Ukraine, based on evidence gathered from four regions of the country.

His address follows investigations in Kyiv, Chernihiv, Kharkiv and Sumy, where the commission visited 27 sites and interviewed more than 150 victims and witnesses.

Moscow and Kyiv have not responded to the statement.