Russian Federation later presented a third draft resolution that would have supported an investigation by the Organisation for the Prohibition of Chemical Weapons, but would not create a mechanism to identify the perpetrators of chemical attacks.
Vice President Pence will attend the conference to represent the USA at the worldwide summit. France and Britain also condemned the suspected attack by the Syrian government on the rebel-held area on April 7, and may also take action. But the incident has thrust Syria's seven-year-old conflict back to the forefront of global concern.
President Donald Trump warned Russian Federation that missiles are coming for Syrian President Bashar al-Assad.
"They agreed that the global community needed to respond to uphold the worldwide prohibition on the use of chemical weapons".
In the meantime, the worldwide chemical weapons watchdog, the Organization for the Prohibition of Chemical Weapons, said it will send a fact-finding mission to Douma to investigate the reported attack.
But whether a team would try to get there was unclear.
CBO forecasts the return of trillion-dollar deficits
Projected deficits over the 2018-2027 period have increased markedly since June 2017, when CBO issued its previous projections. CBO projected that real GDP will rise to 3.3 percent in 2018, before dropping below 2017 levels to 2.4 percent next year.
The Russian parliamentary delegation arrived in Syria on Wednesday and plans to hold meetings with the country's leadership, businessmen and also carry out a number of humanitarian efforts.
Syria's President Bashar al-Assad denies being behind the latest chemical attack, which the World Health Organization (WHO) said has killed at least 43 people.
The guided missile destroyer is armed with Tomahawk cruise missiles, the weapon of choice in a USA attack one year ago on an airfield in Syria following an alleged sarin gas attack on civilians.
Rival draft resolutions by both the USA and Russian Federation to set up a new expert body to probe chemical weapons attacks in Syria have failed to pass at the United Nations Security Council.
Airspace around Syria's west coast is empty of civilian flights, as the United States and its allies edge closer to launching air strikes on Syria with major military movements reported. According to the Russian Foreign Ministry, this happened because of information that USA warplanes were headed toward Syria.
U.S. President Donald Trump on Sunday warned the Syrian government it would pay a "big price" for the suspected chemical weapons attack.
Calling Syrian President Bashar al-Assad a "monster", she added that whatever action the UN chose to take, "either way, the United States will respond".