Ansar Dine Islamists in Mail have launched a campaign to destroy several historic tombs in the ancient city of Timbuktu.
The al Qaeda-linked group claims the tombs violate Islamic law.
Last week, militants attacked and damaged several sites in Timbuktu.
Now, it was reported that they completely destroyed two ancient tombs at the city's famous Djingareyber mosque.
Alida Boye was the coordinator of the Timbuktu Manuscript Project at the University of Oslo, in Norway.