ISIS philistines vandalised more ancient monuments in Syria’s Palmyra after executing 12 captives in the Roman amphitheatre, residents said yesterday.

Syrian antiquities chief Maamoun Abdulkarim said the death cult blew up the facade of the theatre and and the Tetrapylon quadrangle of 16 columns on four plinths.

That followed the Salafists’ latest act of barbarism on Wednesday when they executed 12 people in the amphitheatre, four of them by beheading.