"One of the most important prerequisites for solving the crisis is to unite a wide spectrum of Syrian opposition forces on a constructive dialogue platform with the government on all the current key issues," Lavrov said at a meeting with members of the Syrian opposition.
Syria has been in a state of a civil war since a 2011 political crisis. Government forces have been fighting on multiple fronts against opposition forces and numerous extremist militant groups, including the Islamic State and the Nusra Front.
Moscow hosted two rounds of talks between the Syrian opposition and government in 2015. During the April round of talks in Moscow, the sides to the Syria conflict agreed on an agenda defining a framework for negotiations to end the war.
In July, Moscow expressed its willingness to host the third round of intra-Syrian peace talks. The date of the new round of consultations has not been set yet.