BEIRUT: The militant group ISIS has publicly executed a Syrian it accused of planting tracking devices for deadly regime airstrikes, SITE Intelligence reported Saturday.

The jihadi group posted footage of the accused being paraded before a crowd but the video deliberately freezes at the point an ISIS fighter pulls his head back and holds a knife to his neck, the U.S.-based monitoring group said. After the execution in Syria’s northern province of Aleppo, the jihadis paraded the body of the accused on a cross. ISIS charged that more than 190 people had been killed in the airstrikes that the man had abetted.

In October and November, the Syrian regime sharply intensified its airstrikes on areas held by ISIS or other rebel groups. In just 40 days, some 2,000 strikes killed more than 500 people, according the Britain-based, anti-regime group the Syrian Observatory for Human Rights.