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Photo taken from southern Turkish border town of Ceylanpinar on Oct. 12, 2019 shows smoke rising from the northern Syrian city of Ras al-Ain during an attack launched by Turkish army. Turkish President Recep Tayyip Erdogan said on Sunday that Turkish forces would "go down to a depth of 30-35 km" into Syrian territory as planned under Ankara's safe-zone project. (Photo by Mustafa Kaya/Xinhua)