“The newest U.S.-backed offensive against the Islamic State in northern Syria suffered a devastating setback when the extremist group detonated an explosive-laden vehicle near a Kurdish-led column of armored vehicles, an Arab militia commander said Monday. The Islamic State said the suicide bomber, with five tons of explosives, attacked a convoy of 70 vehicles Sunday, including tanks and armored personnel carriers, killed dozens of Arabs and members of the Kurdish People’s Protection Units, or YPG.”
Source: Kurds, Arab allies hit hard by Islamic State car bomb | McClatchy DC