"And Russia said no to a resolution that would have helped promote peace in Syria", US Ambassador to the UN Nikki Haley said after the resolution was failed to be adopted.

Moments after the US Secretary of State and Russia's Foreign Minister ended a news conference in Moscow, Russia vetoed the latest United Nations resolution condemning the reported use of chemical weapons in Syria.

The primary issue, Tim Eaton noted, was that when Johnson was mayor of London he advocated several times that the United Kingdom should work with the Syrian president, Bashar al-Assad, and Russian Federation to defeat Islamic State. "I think the most powerful weapon we have at the moment is our ability to make President Putin and the Russians feel the consequences of what they are doing". He said working groups would be established to improve US-Russian ties and identify problems.

United Nations investigators already have the mandate under previous resolutions to look into allegations of chemical weapons use in Syria but the West had pushed for council resolution to underscore its support for a thorough investigation in the Khan Sheikhun case.

This comes as the rift between the U.S. and Russian Federation deepens over the recent happenings in Syria. He added there was no talk Wednesday about a possible Trump-Putin meeting. Lavrov said it was tilted to blame Assad.

President Donald Trump declared Wednesday that U.S. -Russia ties "may be at an all-time low", and Tillerson struck a similar tone after a day of talks in Moscow.

While the most immediate US-Russian dispute concerned culpability for the chemical weapons, broader disagreements over everything from Ukraine to Russia's support for once-fringe candidates in European elections were among other sore points.

The tense back-and-forth over last week's deadly chemical attack in Syria has added to the strain.

Assad gave the interview to AFP in Damascus on Wednesday.

The White House has accused Moscow of trying to cover up Assad's use of chemical weapons after the attack on a rebel-held Syrian town last week killed 87 people.

Tillerson said Tuesday that Assad's time leading Syria was "coming to an end" and that Russian Federation could lose relevance in the Middle East if it continues to support Assad.

A USA defense official says intelligence shows a Russian drone flew over the hospital in Idlib that was treating victims of the chemical attack, prior to the site being later bombed by an unknown aircraft.

The U.S. has said that the strikes were in response to the chemical weapon attack in Syria.

US President Donald Trump, speaking at an event in the White House, said he was not surprised by China's abstention.

"It reminds me of the events in 2003 when U.S. envoys to the Security Council were demonstrating what they said were chemical weapons found in Iraq".

The civil war is separate from the USA -led effort against the Islamic State group in the north of the country.

In Paris, French President Francois Hollande said: "Russia bears a heavy responsibility" by systematically opposing multilateral action to protect its Syrian ally Assad.

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.

SecTillerson: As events shift, U.S. will continue to evaluate its strategic options & opportunities to de-escalate violence across #Syria.