Syria: Rebels on 'highly dangerous' Aleppo mission
Fighter jets have bombed eastern areas of Syria's second city Aleppo, the attack is being seen as a significant escalation in the conflict.
It comes as the government attempts to take back districts of Syria's commercial centre seized by rebels
The rebels launched an offensive against Aleppo at the weekend in an attempt to take the city from government forces
The BBC's Ian Pannell joined a convoy to Aleppo.
This video contains images of the casualties of the conflict in Syria