The Britain-based Syrian Observatory for Human Rights said the attack was preceded by intense shelling. It said that Turkey-backed opposition fighters captured three nearby villages, encircling Dabiq and cutting off all supply routes. He was referring to areas in Syria already captured by Turkish troops and Turkey-backed opposition forces. State TV said Syrian troops blew up a tunnel near Aleppo's famous Citadel, killing dozens of opposition fighters. —————Associated Press writers Albert Aji in Damascus, Syria, and Zeynep Bilginsoy in Istanbul contributed to this report.

Source: ABC News October 15, 2016 11:12 UTC