Fighting for their life in Aleppo.<br/> <br />Amateur video out of Syria which could not be independently verified by Reuters appears to show rebels engaged in street fighting in Syria's largest city.<br/> <br />Activists say more than 27,000 people have been killed in Syria since the uprising began last March. What began as mainly peaceful calls for reform has become a bloody insurgency deepening sectarian tensions in the Middle East.<br/> <br />More footage shows smoke rising from buildings in Deir al-Zor.<br/> <br />The footage comes as international mediator Lakhdar Brahimi met with President Bashar al-Assad warning the Syrian leader that the escalating conflict posed a global threat.
