One airstrike hit the headquarters for Ahrar al Sham in Babsaqa, Idlib province, near the Bab al-Hawa border crossing with Turkey, the London-based Syrian Observatory for Human Rights said.

Activist video and photos from the scene claimed to show a large explosion and a building blown into rubble.

Ahrar al Sham is a Sunni Muslim group that is not on the U.S. list of designated terrorist organizations and so far has not been hit by coalition airstrikes…

There are mixed opinions on how radical the group is, mostly because its entire leadership was killed in a September blast and the new leadership’s intentions are not yet clear, although some observers anticipate a more radical direction.