The UNESCO World Heritage Committee, meeting in Bonn, noted the Islamic State's destruction of the ancient city of Hatra in Iraq and expressed "deep concern" about the Syrian archaeological gem of Palmyra, which the group captured in May.
Both are UNESCO World Heritage Sites.
"Intentional attacks against buildings dedicated to religion, education, art, science or charitable purposes and historic monuments may amount to war crimes," the committee said in a resolution it adopted.
