6 August 2012 Updated at 17:56 ET
Syria 'crumbling' after PM's defection
Hijab spokesman: "This defection was in the pipeline for two continuous months"
Syria conflict
Fear and hunger in Aleppo
The rise of jihadist groups
Fighting and refugees in maps
Aleppo's battleground school
Western powers have said the defection of Syrian Prime
Minister Riad Hijab is a sign that the regime of
President Bashar al-Assad is crumbling.
link-
http://www.bbc.co.uk/news/world-middle-east-19156286