U.S. President Donald Trump has made a decision to cancel his first official trip to Latin America this week in order to focus on responding to a suspected chemical weapons attack in Syria, the White House said on Tuesday.
The assessment also suggested that a never agent was used in the suspected poison attack, but further evidence was needed to determine the type of agent, U.S. government sources told the news agency.
President Donald Trump has canceled a foreign trip to manage the crisis, which is testing his vow a year ago to stop Syrian President Bashar Assad from using chemical weapons against his own people.
Trump also called out Russian President Vladimir Putin for his role in Syria's conflict that just entered its eighth year.
He added that intelligence shared by President Emmanuel Macron and Trump "in theory confirms the use of chemical weapons".
Trump said the U.S.is still investigating the possible involvement of the Iranian and Russian governments.
"We can't let atrocities like we all witnessed - and you can see that and it's awful - we can't let that happen", Trump said at the start of a meeting with senior military leadership on Monday, including his new national security adviser John Bolton.
"What Russia is trying to do, it strikes me, Mr President, is to turn the debate in this Council away from a discussion of the use of chemical weapons into a dispute between East and West, presenting itself as the victim".
At a meeting on Monday, US Ambassador to the United Nations Nikki Haley said Washington would respond to the suspected weapons attack in Syria regardless of whether the Security Council acted or not.
The UN Security Council is due to vote on three draft resolutions on chemical weapons attacks in Syria on Tuesday, setting up a showdown between the United States and Russian Federation.
An American official said the US was discussing with allies whether they would participate in a retaliatory strike.
Top U.S. military chiefs reportedly advised the president that their forces need to remain in Syria to prevent an ISIS resurgence.
The Organization for the Prohibition of Chemical Weapons (OPCW) will dispatch a special mission to the city of Douma located in Eastern Ghouta to verify reports on the alleged use of chemical weapons, the organization said in a statement posted on its website, TASS reports.
Dow industrials down more than 300 points at Thursday's opening bell
Nixon, of Northern Trust, said businesses also support the idea of making changes in America's trade relationship with China. Apple skidded $2.14, or 1.2 per cent, to $170.66 and Cisco Systems declined 63 cents, or 1.5 per cent, to $41.19.
With those high-level talks proceeding, Mrs. Sanders said, the president will not attend the eighth Summit of the Americas in Lima, Peru, or travel to Bogota, Colombia, as planned.
This image from the Syrian Civil Defence White Helmets shows medical workers treating children from the effects of a suspected chemical weapons attack in Douma on April 7.
Volunteer rescue service The White Helmets, which also has links to opposition forces, said numerous victims were women and children.
Turkish President Recep Tayyip Erdogan says his country will hand over control of the strategic town of Afrin - which Turkish troops seized from Syrian Kurdish forces last month - to the people of Afrin "when the time is right". If Trump decides to proceed quickly, the most likely partner would be France rather than Britain, because of concerns about obtaining permission from Parliament, said the official, who wasn't authorized to discuss the planning publicly and requested anonymity.
Separately on Tuesday the president's new national security adviser, John Bolton, appeared to be making personnel changes as he remakes the staff following his arrival on Monday.
The USS Donald missile destroyer was sailing towards Syria as the White House weighed up its options.
As U.S. officials consider whether and how to respond, they are looking at what type of chemical agent might have been used.
The Atlantic: The Terrible Cost Of Obama's Failure In Syria - "Four years ago, it nearly looked as if chemical attacks on Syrian civilians would stop".
The Syrian government, in a statement posted on the state-run news agency SANA, denied the allegations.
Russian Federation and the Syrian military blamed Monday's pre-dawn strike, which reportedly killed 14 people, on Israel.
Trump spoke to Macron for the second time in two days over the alleged attacks, with the pair expressing a "desire for a firm response from the worldwide community to these new violations of the chemical weapons ban", according to the Elysee Palace.
Iran is one of President Bashar Assad's strongest backers and has sent thousands of Iran-backed gunmen to back his forces.