The localities on border between the Syrian Aleppo and Raqqa provinces have been liberated during the operation to take control of the Syrian city of Raqqa, currently under control of IS extremists, the source said on Monday.
Last week, the Syrian Democratic Forces, with support of the US-led international coalition, commenced an offensive to liberate Raqqa.
Raqqa has been under control of the IS since 2013.
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