A new video released by ISIS shows militants destroying ancient buildings in the city of Hatra with sledgehammers and assault rifles. The video was released on Friday, the Associated Press reports. ISIS descended upon the city early last month.

The Iraqi government is investigating reports that ISIS have descended upon an ancient archaeological site at Khorsabad, according to the Associated Press. A Kurdish official from Mosul said that eyewitnesses reported that militants had begun demolishing the site on Sunday.

A day after ISIS militants in Iraq destroyed the remains of the ancient Assyrian city of Nimrud, fighters from the Islamist group have begun looting the ancient city of Hatra, the Associated Press reports.