The armed branch of the Syrian opposition claimed responsibility for an early morning attack in Damascus. At least two rocket-propelled grenades hit the headquarters of Syria's governing Baath Party. No one was injured. It comes as a diplomatic storm surrounds the country, with an Arab League ultimatum demanding an end to violence expiring on Saturday. But Syrian President Bashar al-Assad pledged not to 'bow down' before foreign pressure. RT's Tesa Arcilla reports from Brussels.
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