ISIS group fighters killed at least seven regime loyalists in eastern Syria on Saturday, the latest in a series of deadly extremist attacks, a Britain-based war monitor reported.
“Seven members of the National Defense Forces, a pro-regime militia, were killed in clashes with an ISIS sleeper cell” in the eastern province of Deir Ezzor, said the Syrian Observatory for Human Rights.
ISIS gunmen wounded several other militia fighters, meaning the death toll may climb, it added.
The attack came as the militia fighters were sweeping the town of Al-Shola for extremist remnants, according to the monitor.
The region, near the border with Iraq, was formerly a stronghold of the extremist group.
Last week, the Observatory said ISIS gunmen in central Syria had ambushed a bus carrying government soldiers in the Wadi al-Azib area of Hama province.
The ambush late Sunday resulted in the deaths of eight soldiers, four allied fighters and three civilians, the Observatory said.
Last month, ISIS said it was behind a December 30 bus ambush in Deir Ezzor province, which killed at least 37 Syrian soldiers.
ISIS in 2014 overran large parts of Syria and Iraq and proclaimed a cross-border “caliphate” before multiple offensives in the two countries led to its territorial defeat.