On Wednesday's broadcast of MSNBC's "Morning Joe", Senator and former Democratic vice presidential nominee Tim Kaine (D-VA) argued, "this administration has to bluntly, vigorously, continuously call out the atrocities of Bashar al-Assad..."
Their Country Director Fadi Al-Dairi says, 'One of our offices is in Khan Sheikhoun and we have two hospitals in the vicinity.
Israeli military intelligence officers also believe Syrian government forces were behind the attack, Israeli defense officials told the Associated Press.
From October 2013, the OPCW oversaw the destruction of Syria's chemical weapon stockpile.
"People are still in shock in Khan Sheikhoun". Those strikes appeared to deliver only conventional weapons damage.
Turkey set up a decontamination centre at a border crossing in the province of Hatay following the attack, where the victims are initially treated before being moved to hospitals.
But doctors said victims showed symptoms consistent with the use of a nerve agent such as sarin - suspected to have been used by government forces in deadly attacks outside Damascus in 2013. Videos from the scene showed volunteer medics using firehoses to wash the chemicals from victims' bodies and lifeless children being piled in heaps.
At least 19 children and 13 women were among the dead, the Observatory said, and an AFP correspondent in Khan Sheikhun saw many people on respirators.
Pope Francis said Wednesday that he "strongly deplored the unacceptable massacre" "and was "watching with horror the latest events in Syria".More news: Senate hearing to focus on Russian disinformation tactics
"When the United Nations consistently fails in its duty to act collectively, there are times in the life of states that we are compelled to take our own action", Haley said.
Britian, France, and the United Stated have drafted a proposed U.N. Resolution condemning the use of chemical weapons in Syria.
"We have every indication that this was a sustained attack using aircraft over a number of hours", Rycroft told the council.
This week's chemical attack by Syrian President Bashar Assad's forces against his own people - killing as many as 100 people, including children - exposed the risky fecklessness of President Donald Trump's foreign policy.
Sen. Marco Rubio, R-Florida, went a step further when he said Wednesday that he doesn't think it's a coincidence that a suspected chemical weapons attack in Syria occurred shortly after Tillerson suggested Assad could remain in power. Representatives from 70 countries were present.
Spokeswoman Maria Zakharova said Moscow considered the resolution "anti-Syrian", adding it "pre-empts the results of an investigation and just immediately designates the guilty".
The European Union's top diplomat, Federica Mogherini, said: "Obviously there is a primary responsibility from the regime because it has the primary responsibility of protecting its people".
The senator says the attack "was a moment the president could have spoken with moral authority and with the beginning of an outline of a strategy".
Before the war began in 2011, Syria had research and production facilities near Damascus, Aleppo, Homs, Latakia and Hama that turned out hundreds of tons of chemical agents a year, according to the US-based James Martin Center for Nonproliferation Studies and the Nuclear Threat Initiative, which catalogs the world's arsenals of weapons of mass destruction.
The Syrian Coalition, an umbrella opposition group, compared the suspected chemical attack with one in Eastern Ghouta in 2013 "that the global community allowed to pass without accountability or punishment".