Around 60 Tomahawk cruise missiles were launched on Thursday night at the military airfield in Ash Sha'irat 38 kilometers southeast of the city of Homs, NBC reported, citing USA military officials.
Prime Minister Theresa May's office says the action was "an appropriate response to the barbaric chemical weapons attack launched by the Syrian regime, and is meant to deter further attacks". The missiles are guided by Global Positioning System and according to manufacturer Raytheon they "can fly into heavily defended airspace more than 1,000 miles away to conduct precise strikes on high-value targets with minimal collateral damage".
A USA missile strike targeting an airbase in central Syria killed nine civilians, including four children, on Friday, state news agency SANA reported.
About 60 U.S. Tomahawk missiles hit the Shayrat air base, a small installation with two runways, where aircraft often take off to bomb targets in northern and central Syria.
The Syrian military said at least seven people were killed and nine wounded in the missile strike.
They say the strike destroyed Syrian aircrafts and infrastructure that could be used for future chemical attacks.
The Tomahawks were first used by the US during the Gulf War in 1991, and they've been a mainstay of the military ever since.
The Syrian General Staff said that the Pentagon failed to notify Syria of the attack. The officials weren't authorized to speak publicly on the matter and demanded anonymity.
Washington has blamed the Syrian military for the toxic attack in which over 70 persons died.
The Syrian airbase hit by the USA missiles was used in the war against the Islamic State group. France, Italy and Israel also welcomed the strikes.
Maj. Jamil al-Saleh, a U.S-backed rebel commander based in the area where the USA attack took place, told The Associated Press he hoped the strike would be a "turning point" in the six-year-old war, which has killed an estimated 400,000 people.
Assad had been under mounting worldwide pressure after the chemical attack on the northern town of Khan Sheikhoun, which killed 87 people, including 31 children.
Assad's government had been under mounting global pressure after the chemical attack, with even key ally Russian Federation saying its support is not unconditional.
Still, he said the strike on the base, Syria's second-largest, with a fleet of Sukhoi-22, Sukhoi-24 and MiG-23 warplanes, is more a moral blow than a military one.
"It is in the vital national security interest of the United States to prevent and deter the spread and use of deadly chemical weapons", Trump said.
US Ambassador Nikki Haley, who holds the council presidency this month, said the discussion would be held in an open session despite Bolivia's request for a closed-door meeting.
"The United States attacked the territory of sovereign Syria".
A survivor of the chemical attack on Khan Sheikhoun told the AP he hopes the USA missile attack puts an end to government airstrikes, creating a safe area for civilians.
On Thursday night, Rep. Martha McSally, R-Ariz. - whose district includes Raytheon's headquarters - said she was proud those efforts ensured "that this weapon was ready and available when our armed forces needed it".