"The opposition, on the other hand, is saying that this is a plot staged by the government to deter thousands of people that were planning to converge on that same spot to call for the international community to step in and enforce a no-fly zone and enforce also a dramatic of the regime in Syria."
Colonel Riad al-Asaad, the head of the Free Syrian Army, has dismissed the government's report of the attack, saying that Friday's explosion was "the work of the regime, just like the previous two explosions."