Ms Zakharova suggested that Western media bore some responsibility for the strikes, claiming the White House cited "multiple media sources" on the suspected chemical weapons attack in Douma.
"We continue to observe risky military preparations for an illegal act of force against a sovereign state", he said.
He did not elaborate or name the state. The exchange follows the poisoning of a former Russian spy in Britain, and comes amid Moscow's stern warnings to the West against striking Syria.
"It's.highly likely an attempt to create complications for the Organisation for the Prohibition of Chemical Weapons (OPCW) mission which was just starting its work in Syria's Douma, or an attempt to completely derail it", Interfax quoted Kosachev as saying.
Moscow is urging to immediately put an end to the West's risky policy line towards ruining the accords on Syria, the Russian Foreign Ministry said.
Russian Foreign Ministry spokesperson Maria Zakharova said at a news briefing Thursday that the threat to use force against a member state of the United Nations is a "blatant violation of the UN Charter".
The US, British and French strikes against Syria deal a powerful blow to efforts aimed at promoting the Geneva process, the Russian Foreign Ministry said in a statement on Saturday.More news: Facebook adds AR drawing and Instagram's Boomerang to Stories
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The missile strike against Syria's military and civilian infrastructures was carried out by U.S. warplanes and naval ships in cooperation with the British and French air forces on April 14. Lavrov spoke to reporters in Moscow yesterday. "I hope no one would dare to launch such an adventure now", Lavrov said.
Douma and the rest of eastern Ghouta had been a significant rebel stronghold throughout Syria's civil war and its surrender came after years of siege by Assad's troops and a months-long military offensive.
He noted that the Russian and USA militaries have a hotline to prevent incidents, adding that it's not clear if it would be sufficient amid mounting tensions.
"As far as channels are concerned, the remaining channels include sporadic conversations between presidents and regular contacts between the military, which are being used in this format and within those frameworks..." It also said Russian officers found no patients with chemical attack symptoms at a local hospital, and no indication of any burials having taken place of the victims.
The chairman of the worldwide affairs committee of Russia's Upper House of Parliament, Mr Konstantin Kosachev, described the air strikes as a groundless attack on a sovereign government, Interfax said. The government, however, said evacuations from Douma were ongoing and no Syrian government forces had entered the town.
Douma and the sprawling eastern Ghouta region near the capital, Damascus, had been under rebel control since 2012 and was a thorn in the side of President Bashar Assad's government, threatening his seat of power with missiles and potential advances for years.
"We are open for those contacts, they help to understand each other better", he said.