A survivor from what activists say is a gas attack rests inside a mosque in the Duma neighbourhood of Damascus (21 August 2013)
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Syria's 'chemical' attack: Distressing footage analysed

There is growing diplomatic pressure to allow United Nations inspectors to visit the site of a suspected chemical weapons attack in Syria where hundreds of people are reported to have been killed.

Opposition activists say men, women and children were gassed by government forces near Damascus on Wednesday.

The BBC's Bridget Kendall investigates how the attack unfolded, mainly through extremely distressing videos posted online.

  • 22 Aug 2013
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