ISIS beheaded a Syrian imam Thursday for "insulting God," an activist group said.
"The IS executed the imam of a mosque from the village of Abu Khuyut near Hasakeh city [in northeastern Syria] at dawn Thursday," said the Syrian Observatory for Human Rights, using an alternative name for the group.
The Britain-based Observatory added that three of the man’s sons were ISIS fighters, and that it was the first time the jihadis executed a religious official for this reason.
The man was detained after watching a video on executions carried out by ISIS and cursing because God had permitted them, Observatory director Rami Abdel Rahman said.
ISIS carries out near-daily executions in the territories of Syria and Iraq that it controls.
Originating in Iraq, it appeared in Syria's civil war in spring 2013, and has since committed some of the conflict's worst abuses.