Suspected Islamic State sleeper cells launched a series of attacks against the U.S.-backed Syrian Democratic Forces in northeastern Syria, apparent retaliation after a plot to break thousands of the terror group’s supporters out of prison was foiled.
Word of the IS strikes first broke late Monday, with some accounts claiming IS fighters targeted key outposts with rockets and gunfire.
The Rojava Information Center, a pro-Kurdish research organization in northeastern Syria, confirmed the attacks Tuesday, saying IS cells attacked SDF headquarters in Busayrah, about 30 kilometers southeast of Deir el-Zour.
