Moscow has stood by Syrian regime leader Bashar al Assad, saying the poison gas belonged to rebels, an explanation Washington dismisses as beyond credible.
Putin has condemned the USA military assault on a Syrian airfield, saying that the move represents an aggression against a sovereign state in violation of global law under a far-fetched pretext.
"We have information from a variety of sources that such provocations. are being prepared in other parts of Syria, including in southern suburbs of Damascus", Putin said Tuesday during a news conference with Italian President Sergio Mattarella.
The attack was made in response to a chemical weapons attack that resulted in civilian deaths earlier.
Putin also said on Russian TV that the level of trust has "deteriorated".
Assad has denied his government was behind last week's chemical weapons attack that killed more than 80 people.
The Syrian representative noted that the Syrian government, basing on its firm principles, has joined the Prohibition of Chemical Weapons Convention and fulfilled its obligations in this regard since it made unprecedented achievement in the OPCW's history and ended the Syrian chemical weapons program in record time, back in 2014.
"The worldwide community has spoken".
The high-level talks in Moscow clearly failed to bridge the widening gap between the U.S. and Russian Federation on Syria.
Syrian President Bashar al-Assad said an alleged poison gas attack blamed on his government last week in Idlib province was "100 percent fabrication" used to justify a USA air strike, news agency AFP reported on Thursday. -Russian relations may be at an all-time low.
To add to the confusion surrounding the attack, White House officials have sent mixed messages on their positions on Assad. "That's a butcher", Trump said.
Trump said, "I would like to think that they didn't know, but certainly they could have".
Lavrov added: "Yesterday, we discussed in detail (with US Secretary of State Rex Tillerson) the need to step up Russian-American efforts towards mobilizing the worldwide community to fight terrorism, and reminded him that US actions like the strikes against Syria on April 7 are at variance with this task".
US Defense Secretary James Mattis said the airstrike had destroyed 20% of the Syrian government's operational aircraft.