President Trump: Syrian Attack 'Crossed A Lot Of Lines For Me'

He said the US stood with its global allies "to condemn this horrific attack".

United Nations Ambassador Nikki Haley also suggested Wednesday that there could be US intervention in Syria's ongoing civil war, strongly condemning not only the attacks but also blaming Russian Federation for its support of the Assad regime. But Russia says anti-Assad rebels are to blame.

Defense Secretary James Mattis was asked about a possible USA response.

Haley hinted that in light of a United Nations failure to prevent such attacks, certain states may be "compelled to act" on their own.

A resolution drafted by Britain, France, and the USA stressed the Syrian government's obligation to provide information about its air operations, including the names of those in command of any helicopter squadrons on the day of the attack. That was interpreted by many to mean that the Obama administration goal of removing Assad from power and pushing for a political solution to the Syrian war had been set aside.

Leaders and officials in other countries, including Britain and Israel, joined the saying Assad's forces were responsible.

"These are very troubled times in the Middle East", he said.

"Experts who've dealt with the gas say all the symptoms seem to indicate that Sarin was involved", Al Jazeera's Alan Fisher, reporting from Beirut. But the use of chemical weapons has continued, and the regime may now be emboldened.

On Tuesday, three permanent members of the Security Council - the United Kingdom, France and the United States - presented a draft resolution that condemns the use of chemical weapons in general, and condemns the April 4 chemical attack in Syria in particular.

While calling the attack "reprehensible" and intolerable, Trump said Obama "did nothing" after Assad crossed the former US leader's "red line" in 2013.

A bipartisan pair of senators on Wednesday knocked President Trump's attempt to shift blame to former President Obama for a chemical attack this week in Syria.

"Whoever carried it out will not escape from justice, and must be punished by the global community according to worldwide law and global humanitarian law", the Arab League chief said, without specifying who he held responsible. The officials weren't authorized to speak publicly on the matter and demanded anonymity.

A chemical attack that killed more than 72 civilians in rebel-held northwestern Syria has prompted widespread outrage and calls for worldwide action.

He has previously said the United States and Russian Federation should work more closely in Syria to fight against Islamic State.

Victims of the attack showed signs of nerve gas exposure, the World Health Organization and Doctors Without Borders said, including suffocation, foaming at the mouth, convulsions, constricted pupils and involuntary defecation.

Medics worked frantically in the hours after the attack to treat a steady stream of patients, administering oxygen and hosing down victims to wash off chemical residue.

The attacks have overwhelmed local medical facilities which are "unequipped to handle chemical attacks of this magnitude", the UOSSM stated. The spokesman said there were no military groups in the area.

"This was visible in videos on social media, said to have been taken at the scene of the attack", he noted. The FBI and two congressional committees are investigating whether figures from the Trump campaign colluded with Moscow, which the White House denies.