A U.S. airstrike in Syria appears to have killed a key French jihadist who is part of the militant Khorasan Group, a U.S. defense official said Thursday.

The strike happened near Idlib, according to the official, who has access to the latest information about the strikes.

The U.S. fired at a vehicle it believes carried David Drugeon, a skilled bomb maker who also has ties to core Al Qaeda members in Pakistan.

The Khorasan Group is made up of senior al Qaeda leaders who have moved into Syria.