USA security officials immediately called for global action to intervene in the situation after the chemical attack Saturday, and President TrumpDonald John TrumpTrump: I'd only rejoin Pacific trade pact if deal was "substantially better" GOP unveils mock cover of Comey book with "ego" attack NY Daily News cover hits Trump over Comey book revelations MORE has threatened a possible military strike against the government forces.
The Russian military says that an alleged chemical attack in Syria was staged and directed by Britain.
According to Interfax news agency, Russia's defense ministry also said that Syria intercepted the USA and allied attacks using Soviet-produced hardware, including the Buk missile system.
U.S. Defense Secretary Jim Mattis has been urging caution in meetings, trying to avoid a strike that would trigger a broader conflict, two U.S. officials said.
President Trump "has not yet made a decision about possible actions in Syria", Haley said.
Russian Federation said that the Western powers "cynically" carried out military action hours before a team from the Organisation for the Prohibition of Chemical Weapons was set to begin an investigation into the suspected chemical weapons attack in the town of Douma in Eastern Ghouta that sparked the intervention by the U.S. and its allies.
"Even non-significant incidents would lead to new waves of migrants to Europe and to other consequences, which neither we nor our European neighbours need", Lavrov said.More news: Bitcoin price surges 16% in sudden move to above $8000
A French frigate, UK Royal Navy submarines laden with cruise missiles and the USS Donald Cook, an American destroyer equipped with Tomahawk land attack missiles, have all moved into range of Syria's sun-bleached coast.
"We continue to observe unsafe military preparations for an illegal act of force against a sovereign state", Russian Ambassador Vassily Nebenzia told the Security Council.
Since 2015 France has carried out air strikes against Islamic State (IS) militants in Syria as part of allied forces linked to the US -led coalition, conducting about 5 percent of total coalition air missions. Putin and Macron instructed their foreign and defense ministers to maintain close contact to "de-escalate the situation", the Kremlin said.
"We are continuing to assess intelligence and are engaged in conversations with our partners and allies", it said.
Assad is supported by Iranian-back fighters as well as the Russian air force and has cemented his control over most of the western, more heavily populated, part of the country. The government's capture of Douma, the last town held by the rebels in eastern Ghouta, marked a major victory for Assad.
"The United States of America will not allow the Assad regime to continue using chemical weapons". A US guided-missile destroyer, the USS Donald Cook, is in the Mediterranean.
What is less clear is whether sarin - the agent used in the chemical attack last April that prompted United States missile strikes - or a similar agent was also used.