Two members of a group opposed to Syrian President Bashar al-Assad have been shot dead by soldiers at a checkpoint in Lebanon.<br /><br />The killings set off protests in Beirut and the northern Akkar region.<br /><br />Sheikh Ahmed Abdul Wahid, a Sunni Muslim cleric, and Muhammed Hussein Miraib, his bodyguard, were both members of the March 14 alliance.<br /><br />Al Jazeera's Zeina Khodr reports from northern Lebanon.