Assad's forces bombard Aleppo and Homs after Syria's PM defects-video

Syrian government forces tighten their grip on Syria's largest cities on Monday, shelling rebel-held areas of Aleppo and Homs, seemingly undeterred by the defection of prime minister Riyad Hijab. Speaking from Jordan, a spokesman for Hijab says the former PM has chosen 'to be among the Syrian people and their revolution'