Iraq’s director of antiquities has confirmed that Islamic State militants have ransacked the ancient city of Dur-Sharrukin near Mosul, the group’s latest assault on the country’s millennia-old heritage.

News of the latest attack emerged as the European parliament passed a resolution calling for the creation of safe havens in northern Iraq to protect the country’s minorities. Accusations have also surfaced that Isis used chlorine gas against Iraqi forces attacking its stronghold in Tikrit.

“[Dur-Sharrukin’s] city walls were razed, and some elements of the temples, but we don’t know the exact extent [of the damage],” Iraq’s director of antiquities, Qais Rasheed, told Reuters. “Looting took place, and then the razing”.