US Secretary of State John Kerry and Russian Foreign Minister Sergey Lavrov reached on Saturday a landmark agreement which would see both countries greatly enhance cooperation in a bid to end the five-year-old Syrian conflict.
Syria's state media said the Syrian troops have fully "purged" the Midan district in the northern city of Aleppo on Sunday from armed militias.
Visiting UN-Arab League special representative Lakhdar Brahimi said in Damascus upon arrival that there is a "big crisis" in Syria.
The Iranian ambassador to Syria expressed on Thursday his country's readiness to support all efforts that aim to help solving the Syrian crisis politically.
At least 32 people had been killed Sunday in two separate bombings that have marked an intensification of violence in the unrest-torn country.
A series of bombs and gunfire attacks across Iraq on Sunday killed some 52 Iraqis and wounded more than 200 others.
Twin blasts rocked the Syrian capital of Damascus on Friday, leaving at least six people killed as intense clashes and violence continued elsewhere causing a number of casualties.
The Arab League's (AL) on Wednesday condemned the continuous violence against Syrian civilians in a statement issued on Wednesday.
Syria said on Tuesday that it would fully cooperate with Lakhdar Brahimi, the new joint special representative of the UN and the Arab League.
Head of the International Committee of the Red Cross (ICRC) Peter Maurer set foot in the Syrian capital of Damascus on Monday for talks with top Syrian officials.
Bombings and urban clashes continued across Syria Sunday, showing no sign of abatement.
The White House on Thursday defended the red line set by US President Barack Obama on the use of chemical weapons in Syria.
Syria, while struggling with rampant violence on ground, has also emerged as a dividing point in the international community that has so far failed to truly contribute a solution.