The Syrian Central Media said the missiles targeted Shayrat air base in Homs.
May told legislators in the House of Commons that seeking their approval would have been impractical, both because Parliament was on a spring break until Monday and because some of the intelligence behind the decision was classified.
US State Department spokeswoman Heather Nauert said it is now the global community's obligation to act in Syria as "Russia has failed to do so".
Russian officials last week claimed British intelligence agencies had helped stage the suspected chemical attack in Douma.
"The President has been clear that he wants U.S. forces to come home as quickly as possible", said White House Press Secretary Sarah Huckabee Sanders in a statement.
Syrian Deputy Foreign Minister Faisal Mikdad met overnight with representatives of the worldwide chemical weapons watchdog at a Damascus hotel.
"The Syrian regime has reportedly been attempting to hide the evidence by searching evacuees from Douma to ensure samples are not being smuggled from this area". When the Trump administration announced sanctions in March related to Russian meddling in the 2016 USA election, it also disclosed what it described as a Russian attempt to penetrate the USA energy grid.
The airstrike was triggered following reports of an alleged chemical attack by Syrian President Bashar al-Assad that left 40 people dead in the town of Douma, outside the capital city of Damascus. "They are crimes of a monster instead".
CEO Of Worlds largest Ad Agency WPP, Quits Under A Cloud
JP Morgan maintained the shares of WPP in report on Tuesday, November 21 with "Overweight" rating. Roberto Quarta, the company's chairman, will now lead the organization in the interim.
Monday's debate ended with a vote, forced by the SNP, on whether the House had sufficiently debated the matter of Syria. A group calling itself the Syrian Arab Community unfurled a banner describing the airstrikes a "reckless and irresponsible act" while a protester wrote "Hands Off Syria" on the asphalt in green paint. "Please be assured", Macron said in his interview, "we've convinced him that we had to stay on in the long term".
Then he pushed the USA military back into the quagmire.
"There is broad based worldwide support for the action we have taken", she will say. Even US officials confessed it was "highly likely" Assad still had a stockpile and the means to manufacture the chemicals.
Captain Adulsalam Abdulrazek, who defected in 2013 when there were an estimated 50 warehouses storing chemical weapons, told the Associated Press that many of these were never dismantled, despite promises by Syria to the US.
Some French opposition leaders have criticized the strikes, saying they were not legitimate.
In Luxembourg, the foreign ministers of the 28 European Union countries called for a political breakthrough involving regional players to put Syria on track to a peaceful solution for its seven-year conflict.
Peskov said only that Russian Federation was against "groundless" accusations about who was responsible for the attack.
The trio of Western powers that carried out the strikes warned they would repeat the operation if Damascus used chemical weapons again, while Putin warned any fresh strikes would "provoke chaos". Syria's seven-year civil war presents few fast or easy solutions for the USA, yet the geopolitical rivalries at play, the presence of the Islamic State group and other extremists, and the atrocities perpetrated by the Assad government make the situation impossible to ignore.
But it would not give MPs the chance to formally approve or reject the air strikes themselves, says the BBC's political editor, Laura Kuenssberg.