This undated frame grab from video posted online Saturday, June 10, 2017, by the Aamaq News Agency, a media arm of the Islamic State group, shows a mosque that was damaged by bombardment by the U.S.-led coalition and U.S.-backed fighters in the northern Syrian city of Raqqa. (Aamaq News Agency via AP)
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NPR's Rachel Martin asks the U.N.'s Matthias Behnke about civilians trapped in Raqqa, the former ISIS stronghold in Syria. The U.N. says up to 100,000 people are trapped there by anti-ISIS strikes.
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