Aug. 27 - Video posted to a social media website shows heavy shelling by Syrian helicopters on rebel-held districts in Aleppo and Homs. Deborah Lutterbeck reports.
Scene of the attack in Aleppo. Amateur video out of Syria which could not be independently verified by Reuters appears to show heavy shelling in Syria's largest city. The video comes amid reports that Syrian President Bashar al-Assad's is increasingly using air power to target rebel districts ion the city. Observers say the army and rebels appear to be stuck in a war of attrition. Clashes are raging across Syria as the 17-month-old rebellion grows increasingly bloody. More than 18,000 people have been killed in the conflict that began as an uprising last March.