The US' keenness to strike stemmed from its charge that the Syrian government had attacked a rebel-held enclave within the country with chemical weapons, killing about 50 people, and the West says it draws the line at chemical weapons, whose use is banned in global law.
Russian Federation said on Saturday it would consider supplying S-300 surface to-air missile systems to Syria following the Western strikes, but this was not discussed at the meeting with Assad, agencies reported.
Russian Federation has been a staunch ally of Syrian President Bashar Assad's government and has helped turn the tide of war in his favor since entering the conflict in September 2015. "It is due to arrive in Damascus on April 14", TASS news agency quoted Lavrov as saying.
"We can not depend on what someone on the other side of the ocean takes into his head in the morning". The US says it suspects that sarin gas also was used.
"We also hold Russian Federation responsible for their failure to stop chemical weapons attacks from taking place", Ms Sanders said.
He said the airstrikes were launched against several sites that helped provide Assad's ability to create chemical weapons.
Sheikh Naim Qassem, deputy leader of the Iranian-backed Hezbollah movement, told Lebanese daily al-Joumhouria: "The conditions do not point to a total war happening. unless Trump and (Israeli leader Benjamin) Netanyahu completely lose their minds".
He noted that Russian and USA militaries have a hotline to prevent incidents, adding that it's not clear if it would be sufficient amid mounting tensions.
British Prime Minister Theresa May describes the attack as neither "about intervening in a civil war" nor "about regime change" but a limited and targeted strike that "does not further escalate tensions in the region" and does everything possible to prevent civilian casualties.
Some national leaders appeared anxious to avert a showdown between the U.S. and Russian Federation.
On Thursday, US officials said they had blood and urine samples from victims which had tested positive for chlorine and a nerve agent, according to a NBC News report.
But he appeared conciliatory yesterday.
Thousands of Russian troops and military advisers are stationed at military facilities across Syria, where they have been supporting President Bashar Assad's 7-year-old efforts to crush the rebellion against his rule.
"We hope that there will be no point of no return - that the U.S. and their allies will refrain from military action against a sovereign state", Mr Nebenzia said.
"The most important thing is to refrain from ill-considered and risky actions that would constitute a gross violation of the UN Charter and would have unpredictable consequences", the office of the president said in a statement after the call. She said of the alleged chemical attack that "Russia can complain all it wants about fake news, but no one is buying its lies and its cover-ups".
US Ambassador Nikki Haley said no decision had been taken on military action and stressed the importance of carefully assessing all the implications. It "could be very soon or not so soon at all".
Haley, who said she would be heading to Washington for meetings later Friday, added that the National Security Council has been cautious and methodical about a decision to retaliate over the attack on the last rebel-held stronghold in Syria, which left at least 49 dead.
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