The extremist group posted photos on social media Friday showing bulldozers destroying the Saint Elian Monastery near the town of Qaryatain, which IS captured in early August.
A Christian clergyman told The Associated Press in Damascus that IS militants also wrecked a church inside the monastery that dates back to 5th century. The priest, who spoke on condition of anonymity for fear of reprisals, said the monastery included an Assyrian Catholic church.