"Most of the new arrivals are Syrians escaping fighting between rival military forces in and around the key border town of Tel Abyad, which was controlled by militants and faces Akçakale across the border," UNHCR spokesman William Spindler told a Geneva briefing.
The figure includes more than 2,183 Iraqis from the cities of Mosul, Ramadi and Fallujah, he added.
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