Russia on Monday condemned a series of deadly bombings in Syria, saying the attacks are aimed at derailing peace efforts.
Russia's Foreign Ministry said in a statement the terror attacks, which were claimed by Islamic State, need an adequate reaction from the international community.
Multiple bombings in Damascus killed at least 83 people Sunday, while bombs in Homs killed another 59 people.
Russia and the United States are trying to convince opposing sides of the Syrian conflict to accept a new cease-fire proposal.
U.S. Secretary of State John Kerry said Sunday a "provisional agreement" had been reached with Russia and could begin within a few days.
Kerry spoke by telephone with Russian Foreign Minister Sergei Lavrov, whose ministry said the two powers agreed on the parameters of the cease-fire. Neither diplomat released details of the plan.