Isis destroys historic Temple of Bel in Syria
Earlier this month Isis released footage of the decapitated body of 82-year-old antiquities department chief Khaled Asaad, whose body was later hung from Palmyra's ruins.
Iraq says ISIS demolishes ruins to cover up looting operations
Experts speculate that large pieces are destroyed for the benefit of the cameras, while more portable items are smuggled to dealers in Turkey.
