Two large explosions were reported by residents on the central Damascus highway on Saturday, Reuters said. No further details were given on this regard.
On the other hand, according to the Syrian Observatory for Humans Rights, the target of the Damascus highway blasts appeared to be a bus transporting regime troops and at least three regime troops were wounded while the other explosion caused no casualties.
On Friday, thousands of protesters marched against the regime, under the slogan: "Our loyalty (the revolution) is our salvation".
"Syria wants freedom, " " Syria is bleeding " and " Bashar, go away! " proclaimed the placards brandished by the demonstrators in Arbine, near Damascus, while videos posted on YouTube showed crowds in Homs, Qamishli, Idleb, Deraa and Aleppo.
According to SANA news, Syrian police have broken up unauthorized rallies in and around Damascus and also in Aleppo, arresting dozens of protesters. Police had to open fire to force the aggressively-minded crowds to disperse. Several people were killed and many wounded.
However, according to Syrian Observatory for Human Rights, regime forces continued Friday in their bloody suppression of the revolt against the regime of President Bashar al-Assad, killing at least 26 people. The deaths were reported in Aleppo, Hama and Homs, Idleb, Deir Ezzor (east) and the Damascus area.
In Aleppo, the protests were the largest the city has seen since the start of the uprising against President Bashar Assad in March 2011. Aleppo is a major economic hub that has remained largely loyal to Assad over the course of the 14-month uprising.
An Aleppo-based activist told AP news that regime forces were in full force, firing live ammunition to disperse protesters.
At least nine people were killed in Aleppo, activist told Arabic language BBC news.
Meanwhile, an explosion rocked the northern commercial hub of Aleppo on Saturday, killing at least five civilians, Al-arabiya news reported
On Thursday, regime forces attacked the university of Aleppo, killing four students and arresting 200 others, after a demonstration against the regime, pushing the University to suspend its ongoing studies until May 13.
Moreover, the head of the United Nations Supervision Mission in Syria, Norwegian Major General Robert Mood praised the Syrian authorities for facilitating the observers’ mission.
As the killing of citizens by government forces in Syria continued, the spokesman for, Ahmad Fawzi, said in Geneva the Annan plan is on track.
"There are small signs on the ground. Some heavy weapons were withdrawn, some remained (...), some violence declined, some continued," Fawzi said.
"The crisis which began a year ago cannot be overcome overnight," Fawzi added.
At the same time, according to AFP news, White House spokesman Jay Carney accused Syrian President Bashar Al-Assad of making no effort to implement Annan’s peace plan.
“If the regime’s intransigence continues, the international community is going to have to admit defeat and work to address the serious threat to peace and stability being perpetrated by the Assad regime," the White House spokesman added.