Konashenkov said Friday that Britain was "directly involved in the provocation", but didn't elaborate or provide evidence. But he said he personally believes it was an "inexcusable" use of chemical weapons.
It said that "all responsibility" rests with Washington, London and Paris.
He accused Russian Federation of being complicit in Syria's retention of chemical weapons, despite a 2013 deal that Moscow helped broker requiring Syria to abandon them.
The U.N. ambassador said the the United States would continue to seek out and call out anyone who uses or aids the use of chemical weapons. The statement said none of the patients had any symptoms of chemical poisoning. He added that the Russian military has proof of British involvement, but didn't immediately present it.
President Donald Trump on Saturday declared "Mission Accomplished" for a US -led allied missile attack on Syria's chemical weapons program, but the Pentagon said the pummeling of three chemical-related facilities left enough others intact to enable the Assad government to use banned weapons against civilians if it chooses.
The strikes were seen as a middle ground between a limited and largely symbolic strike - such as last year's the USA missile attack - and a large-scale assault that either could destroy Syria's chemical weapons or could weaken Bashar Assad's grip on power.
After the Pentagon said the strikes were over, Russian ambassador Anatoly Antonov issued a statement on Twitter accusing the allies of "a pre-designed scenario" against Russia and Syria. He didn't elaborate or name the state.
Russian Federation answered with threats of its own.
Retired Admiral Vladimir Masorin said Russian Federation would sink the USS Donald Cook if it fired on Syria.
According to a statement by the French presidency, Macron called for dialogue between France and Russian Federation to "continue and intensify" to bring peace and stability to Syria.
When Trump says nothing while his government takes concerted action against the Kremlin, he is also, in a sense, plausibly denying that he supports punishing Putin.
The Russian leader warned against "ill-considered and unsafe actions ... that would have consequences beyond conjecture".
Opponents of unilateral USA action called an emergency closed-door meeting of the UN Security Council for later Thursday.
The Russian military said Saturday that Syria's Soviet-made air defense systems downed 71 out of 103 cruise missiles launched by the United States and its allies, according to Tass, Russia's government news site. "Russian Federation can complain all it wants about fake news, but no one is buying its lies and its cover-ups". There is no reason for this, he wrote, adding that "Russia needs us to help with their economy, something that would be very easy to do, and we need all nations to work together".
Syrian regime forces says more than one 100 missiles were fired against a military base in Syria's central Homs province and the research centre in Barzeh, near Damascus.
Since Saturday, when images of ashen toddlers struggling for breath emerged after the alleged attack, there has been a sustained military buildup in the eastern Mediterranean.
Minister of Foreign Affairs, Sergey Lavrov said, "These acts are illegal and unacceptable".
Citing a former senior Defense Department official, the Times noted that Iran "could easily escalate militarily" by striking USA troops in Syria "or with Iranian-backed militias in Iraq". It is using those ties, as well as cybercriminals and information operations, to spread fake news stories that pit Americans against Americans, spread the Russian talking points, and make US democracy weak and vulnerable to Russian influence, along with political and even military operations. Trump, ignoring Mattis' warning, pushed USA military leaders to develop a plan to attack the Syrian Government.
Analysts and politicians caution that even though commentators are already referring to a new Cold War, relations between Moscow and Washington could get far worse.
"Any use of chemical weapons is abhorrent".
The strategy that unfolded this week included a deception in which Navy warships were maneuvered to persuade the Russians - falsely - that the ships would take part in a strike, the official said.
She refused to admit there had been a chemical attack on Douma over the weekend, claiming Russian Federation was "100% sure that that was a clear provocation".
"Never said when an attack on Syria would take place".
"The immediate priority is to avert the danger of war", Russia's United Nations ambassador Vassily Nebenzia said on Thursday. The government, however, said evacuations from Douma were ongoing and no Syrian government forces had entered the town.