A purported Islamic State group video shows extremists at Iraq's ancient city of Hatra destroying it with sledgehammers and shooting Kalashnikov assault rifles at priceless statues.

Hatra is a UNESCO World Heritage site, which officials last month said the extremists had destroyed.

In the video, released overnight Friday, a militant on a ladder uses a sledgehammer to bang repeatedly on the back of one of the carved faces until it crashes to the ground and breaks into pieces. The video also shows a militant firing a Kalashnikov rifle at another.

The video corresponded with Associated Press reporting on the attack and was posted to a militant website frequently used by the group.

Local government officials told the AP last month the militant group had looted ancient sites.