The U.S. military says it has conducted air strikes on five targets of the Khorasan extremist group in Syria.
In a statement on November 6, the military said it was still assessing the outcome of the attack.
But it said initial indications showed the strikes resulted in destroying or severely damaging several of the group's vehicles and buildings.
A U.S. official was quoted as saying a target of the strikes was David Drugeon, a French-born militant and convert to Islam described as a bomb maker for the Khorasan group.
The Pentagon has described the group as an Al-Qaeda affiliate that was planning attacks in Europe and the United States.
Khorasan positions and training camps in northwest Syria have been targeted in multiple air strikes carried out by the United States in the past.