The Damascus suburb of Douma was hit by a suspected chemical attack on April. 7, which left at least 78 civilians dead, according to Syrian civil defense White Helmets.
"There were military leadership contacts, between generals, between our representatives and the coalition leadership", Lavrov said, according to Sky News.
Military analysts say the S-300 surface-to-air missile system would boost Russia's ability to control airspace in Syria, where Moscow's forces support the government of President Bashar al Assad, and could be aimed at deterring tougher USA action.
Russia's daily Kommersant newspaper, citing unnamed military sources, reported earlier on Monday that Russian Federation might start supplying S-300 anti-aircraft missile systems to Syria in the near future. "And the results show that they did not cross these red lines".
But following US-led airstrikes on Syrian regime chemical weapons infrastructure, Russian Federation considered the possibility to "return to examination of this issue not only in regard to Syria but to other countries as well", he stated. With two missiles per target each launcher vehicle can engage up to six targets at once.
Syrian air defenses are largely Soviet-era systems, with SA-2s, SA-5s, and SA-6s as well as the more sophisticated tactical surface-to-air missiles such as the SA-17s and SA-22 systems.
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These complications are more common in young children under 5, older adults, and people with weakened immune systems. People who swallow the germ contract symptoms of diarrhea, stomach cramps and vomiting within two to eight days.
On Friday, the Minister of Foreign Affairs in Moscow said that the United States respected and sought out Russian positions in Syria during last week's airstrikes. Russian Federation claims 71 coalition missiles were downed.
He said: "Now, we have no moral obligations". The question of providing S-300 air defense systems to Syria has not been settled yet, Russian Foreign Minister Sergey Lavrov told the media in Beijing on Monday. "We had the moral obligations, we had promised not to do it some 10 years ago, I think, upon the request of our known partners", he said according to RIA.
"We took into consideration their claim that this could destabilise the situation. Now we don't have this moral obligation any longer".
Russian Foreign Minister Sergei Lavrov has said building up the presence of the United Nations (UN) in Syria deserves attention as it will help collect reliable information.
"They are the leaders who were elected by their peoples and they are responsible for peace and calm".