The Russian diplomat said the Syrian government has also offered its proposals for a possible dialogue.

"Russia would like to facilitate the unification of these two processes," he said, stressing that Syria's political problems must be settled by Syrians.

Lavrov called the NCC "an influential force of the Syrian opposition" and supported its intentions for a political solution to the conflict, according to the report.

Meanwhile, the Syrian National Coalition (SNC), the main Syrian opposition group, has postponed again a meeting on the formation of an interim government.

The meeting was initially scheduled for last month in Istanbul, Turkey, to elect a "provisional prime minister," but was postponed until Tuesday this week.

At least five candidates are vying for the post of the authority that Syria's opposition plans to form to run the "rebel-held territory," according to an SNC member.

As the international community kept on mediation efforts in a bid to end violence and bloodshed in Syria, explosions and attacks continued to rock the country.

On Monday, multiple mortar shells slammed a time-honored area and a stadium in Syria's capital of Damascus, leaving a number of injuries among people and athletes alike, local media reported.

The first two mortars landed at the Bab Sharqi area in the old quarter of Damascus, local media said, adding that many people were injured and material losses were caused.

Another mortar landed at the Tihsreen Stadium at the Bramkeh district in central Damascus, injuring two referees, a reporter and a civilian employee.

The same stadium was hit last month by a mortar shell that killed a 19-year-old football player.

Mortar attacks have become a daily routine as a result of the military showdown in the suburbs of Damascus between rebels and government troops.