Syrian rebels in Aleppo fire guns as fighting in the commercial hub heats up.<br/> <br />Activists say the city has been under heavy fire since Sunday when warplanes launched an airstrike that killed and wounded dozens in the Hananu district.<br/> <br />Reuters could not independently verify the footage uploaded to a social media website.<br/> <br />President Bashar al-Assad is using airstrikes to prevent the fall of Aleppo as the bloody popular uprising continues relentlessly.<br/> <br />On Monday, Lakhdar Brahimi, the UN and Arab League's special envoy to Syria, said he was traveling to Damascus within the week.<br/> <br />During his meeting with Arab League officials in Cairo, he said he was hopeful he would meet directly with Assad to discuss ways of ending the blooshed.<br/> <br />The UN's previous envoy Kofi Annan was unable to uphold a shaky ceasefire inside Syria earlier this year.<br/> <br />According to UN figures, more than 18,000 Syrians have died in the conflicts, while hundreds of thousands more have fled the country.
