Reports say one of the attacks targeted a police station in the northern Damascus neighborhood of Rukn al-Din. Three people, including civilians and police officers, were killed in the first explosion which went off behind a bakery near the police station.

The second incident involved mortar rounds which targeted a security compound in Bab Musalla, leaving at least two others dead.

Syria crisis started as pro-reform protests but with interventions from the United States, UK and its regional allies it soon turned to a massive insurgency which took in numerous terrorist groups from all over Europe and Middle East to wage one of the bloodiest wars the region has ever experienced.

The war, which many fear is turning to a “war of hatred”, has already taken more than 100,000 lives.

On June 22, foreign ministers of the countries supporting the militants fighting the Syrian government, including Egypt, France, Germany, Italy, Jordan, Qatar, Saudi Arabia, Turkey, the United Arab Emirates and the United States, agreed to provide the insurgents with weapons.

The top officials agreed to "provide urgently all the necessary materiel and equipment to the opposition on the ground, each country in its own way in order to enable them to counter brutal attacks by the regime and its allies and protect the Syrian people."

They also agreed "to channel all military support by relevant countries through the Staff Chairmanship of the Syrian Supreme Military Council."

On Friday, the militants announced that they had received new weapons that could lead to "change" in the war against the Syrian government.

On June 14, US President Barack Obama ordered his administration to provide the militants in Syria with more sophisticated weapons, claiming that the Syrian government had used “chemical weapons” against the militants and thus crossed Washington’s “red line.”

Last month, Syrian President Bashar al-Assad said militants from as many as 29 different countries were fighting against Syria.