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'Physical evidence' Assad behind chemical attack: Kerry

3 September 2013 Last updated at 21:00 BST

President Barack Obama has won backing from key US political figures on his plans for a military strike on Syria.

Mr Obama said a "limited" strike was needed to degrade President Bashar al-Assad's capabilities in response to an alleged chemical weapons attack.

US Secretary of State John Kerry has told the Senate Foreign Relations Committee that there is proof "beyond any reasonable doubt" that the Assad regime prepared for the chemical attack on 21 August.

He said there was "physical evidence" that the Assad regime had launched missiles and warned its own forces to use gas masks.

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