Hundreds of Syrian refugees are fleeing across the border into Turkey to escape an assault by Syrian troops in the area, witnesses say.
Snipers and tanks have been spotted in the village of Khirbet al-Jouz, close to makeshift refugee camps.
Several hundred people broke through barbed wire to get into Turkish territory early on Thursday.
More than 1,300 people are estimated to have been killed in the government crackdown on the popular uprising.
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