US: Assad 'barely dented stockpile' of chemical weapons

President Assad barely dented his stockpile of chemical weapons in an attack last month, the US ambassador to the United Nations claimed.

Samantha Power said: "We assess that although Assad used more chemical weapons on August 21 than he had before, he has barely put a dent in his enormous stockpile."

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G20: 'UN paralysed over Syria'

World leaders have failed to reach agreement on the Syria crisis despite days of talks at the G20 summit in Russia. In a joint statement, 11 country's leaders - but not Vladimir Putin - admitted the UN Security Council "remains paralysed over Syria."