The Syrian government has also categorically denied the accusation. President Donald Trump also ordered strikes about the same time previous year, also in response to reported chemical weapon usage.
The prospect of Western military action in Syria that could lead to confrontation with Russian Federation hung over the Middle East on Friday but there was no clear sign that a US-led attack was imminent.
"Our president has not yet made a decision about possible action in Syria".
The US warned Russia ahead of the overnight strikes on Syria, US Ambassador to Russia Jon Huntsman said, adding that the military action was not "about the conflict between superpowers".
"All nations and all people will be harmed if we allow Assad to normalize the use of chemical weapons".
Russian President Vladimir Putin called the strike on Syria "an act of aggression" against a sovereign state and said Russia strongly condemns it.
Russia's foreign ministry said Syria had been attacked just as it had a chance for peace. In announcing the strikes, Trump directly blamed Russian Federation for enabling the Syrian regime's use of chemical weapons.
The world must provide a "robust, united and steadfast response", Delattre said.
Russian Federation has questioned the rationale for U.S. air strikes on Syria, which have lit up the Damascus sky.
Huge blasts were reported around Damascus early today, moments after the US, France, and Britain announced they were striking Syria's chemical weapons capabilities.
France said Thursday it has proof that Syrian government forces, which Russian Federation has pledged to protect, conducted the attack. Vassily Nebenzia, Moscow's ambassador to the United Nations, said he "cannot exclude" war between the USA and Russian Federation. "The immediate priority is to avert the danger of war", he told reporters.