An airstrike killed 26 fighters of Iraq’s Popular Mobilization Forces in eastern Syria after a deadly attack on US-led coalition troops in Iraq, the Syrian Observatory for Human Rights said Thursday.
Updating its toll for the Wednesday strike, the monitor said it was probably carried out by the coalition.
The coalition did not immediately provide comment.
Before the strike near the border town of Albu Kamal, rockets were fired at a military base north of Baghdad hosting coalition troops, killing two Americans and one Briton.
It was the deadliest such attack in years on an Iraqi military base hosting foreign troops.
There was no immediate claim of responsibility, but the United States has blamed Iran-backed factions from the PMF for similar violence in recent months.
Within hours, the airstrikes were launched against PMF forces just across the border in Syria.
