The Syrian government has also categorically denied the accusation.
Konashenkov released statements by medics from Douma's hospital, who said a group of people toting video cameras entered the hospital, shouting that its patients were struck with chemical weapons, dousing them with water and causing panic. Not for decades, they said, had the United States and Russian Federation come so close to a direct military clash.
US Ambassador to the UN Nikki Haley stated Friday that chemical weapons were used in an attack in Syria that left scores dead and she blamed Russian Federation for complicity, as the Trump administration continues to weigh how to retaliate and Russian Federation maintains its denial that the attack took place.More news: Minnesota woman killed woman, assumed her identity
For now, Putin has limited his response to calling an urgent meeting of the U.N. Security Council. The joint operation came one week after a suspected chemical attack outside Damascus left more than 40 people dead.
Syria had omitted to declare numerous activities of its Scientific Studies and Research Centre (SSRC), the report said.
He noted that OPCW's report didn't contain any mention of BZ, adding that Russian Federation will ask the chemical weapons watchdog for an explanation.
"We are open for those contacts, they help to understand each other better", Lavrov said.
The prospect of Western military action in Syria that could lead to confrontation with Russian Federation hung over West Asia on Friday but there was no clear sign a US-led attack was imminent. "And we'd strike a blow against this right", explained Mikhail Emelyanov, the deputy chairman of the Duma's Legislation Committee.More news: Vice President Mike Pence Warns Russia 'On the Wrong Side of History'
Syrian air defense units downed 71 out of 103 missiles launched by the U.S. and its allies, it said.
Earlier, Russian's foreign minister Sergei Lavrov said the attack had been staged by foreign agents. Moscow alleged soon after the suspected April 7 attack that the images of the victims in Douma were fakes.
"Insulting the President of Russian Federation is unacceptable and inadmissible", he added.
Russia's Federation Council is looking to adopt counter-sanctions against the USA, under which the country may ban exports of titanium components to aircraft giant Boeing, according to Russian Senator Sergey Ryabukhin, RT reports.
French President Emmanuel Macron on Thursday said France has proof that the Syrian government launched chlorine gas attacks and that France would not tolerate "regimes that think everything is permitted".More news: Red Bull engine change "miraculous" - Horner
The Russian ambassador to the United States lashed out against the US-led coalition campaign against suspected Syrian chemical weapons facilities.