US President Donald Trump says a preference on movement in Syria will be done “fairly soon”.
He told reporters that he and his organisation were looking “very, really seriously” during a situation, following an purported chemical conflict on a city of Douma.
The White House pronounced Mr Trump would speak to British and French leaders after on Thursday. Western powers are suspicion to be scheming for strikes.
Russia, Syria’s categorical troops ally, strongly opposes such action.
Russia’s attach� to a UN, Vassily Nebenzia, pronounced he “cannot exclude” a probability of a fight between Russia and a US.
“The evident priority is to avert a risk of war,” he told reporters.
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Also on Thursday, French President Emmanuel Macron pronounced he had “proof” that a Syrian supervision had pounded Douma with chemical weapons.
In a UK, cabinet ministers concluded “on a need to take action” in Syria to “deter a serve use of chemical weapons”, a bureau of Prime Minister Theresa May said.
The UN Security Council is to reason an puncture assembly after to plead a crisis.
What has Trump pronounced about a attack?
On Sunday, a day after a attack, a US boss pronounced Russian President Vladimir Putin gimlet shortcoming for a “atrocity” in rebel-held Douma, since of his support for a Syrian government.
Mr Trump, who has cancelled a designed outing abroad, has been canvassing support for strikes from a leaders of France and a UK.
On Wednesday he pronounced a missiles were “coming”, though on Thursday he tweeted that he had “never pronounced when”. It “could be really shortly or not so shortly during all”, he said.
He after told reporters during a White House: “We’re carrying a assembly currently on Syria… We have to make some serve decisions. So they’ll be done sincerely soon.”
Also on Thursday, US Secretary of Defence Jim Mattis told a congressional panel: “I trust there was a chemical conflict and we are looking for a tangible evidence.”
What happened in Douma?
Activists and medics contend dozens of people died when supervision aircraft forsaken bombs filled with poisonous chemicals on Douma on Saturday.
President Assad’s supervision denies being behind any chemical attack.
The general Organisation for a Prohibition of Chemical Weapons (OPCW) is set to send monitors to Douma to accumulate evidence.
On Thursday US officials were quoted as observant that samples from victims have tested certain for chlorine and a haughtiness agent.
Douma was a final vital insurgent building nearby Damascus. Local activists contend a categorical leaders of a organisation that hold it have left, following an agreement between Russia and a rebels.
Macron’s ‘red lines’
Lucy Williamson, BBC News, Paris
A year ago, Russian President Vladimir Putin stood grim-faced in a luxury of France’s Versailles Palace, as a newly inaugurated Emmanuel Macron announced that a use of chemical weapons in Syria “would outcome in repartee and an evident response”.
Now Mr Macron – who likes to be seen as a boss who does what he says he will do – is confronting a exam of what “reprisal” indeed means.
Former US President Barack Obama was derided in France for not following by on his possess “red line” after Syrian attacks 5 years ago.
“When we repair red lines,” Mr Macron told a French journal final year, “if we can’t make them, we confirm to be weak.”
Strength is an critical partial of President Macron’s bid to plan French change – and a pivotal element, too, of his new domestic loyalty with his US reflection Donald Trump.
Click here for Lucy Williamson’s full analysis
What is Russia’s position?
Russia has described a reports of a chemical conflict as a “provocation” designed to clear Western intervention.
Senior Russian total have warned that missiles melancholy a country’s army in Syria will be shot down and their launch sites targeted.
President Vladimir Putin pronounced on Wednesday that he hoped common clarity would overcome and that a conditions would stabilise.