Turkey, a North Atlantic Treaty Organisation member with forces in northern Syria fighting Kurdish militants, welcomed the strikes and described them as a proper action against the Assad regime.
Britain launched cruise missiles as part of the co-ordinated military operation with the United States and France in response to the chemical weapons attack in Douma one week ago.
"The time for talk ended last night", Haley said.
British Prime Minister Theresa May and French President Emmanuel Macron said the United Kingdom and France had joined in the attack.
Witnesses saw blasts surrounding much of the Syrian capital and a huge fire could be seen from a distance to the east.
The facilities hit had however reportedly been evacuated in recent days. Specifically, the US and allies hit Him Shinshar weapons sites, outside the city of Homs, and the Barzeh research center in Damascus.
Hezbollah has deployed thousands of fighters to Syria to attack the Syrian opposition to Assad.
"Last night, the United States along with our British and French allies showed the world that the United States will not sit idly by while the Syrian regime uses chemical weapons to murder and maim its own people". "When our president draws a red line, our president enforces a red line".
He says there is "no doubt" that the Syrian government is responsible.
In 2013, he said, "we should stay the hell out of Syria" and "Let the Arab League take care of Syria". The NATO alliance gave its full backing, with NATO Secretary-General Jens Stoltenberg saying in Brussels that the attack was about ensuring that chemical weapons can not be used with impunity. He is not giving details about what equipment is involved in the operation or what sites it is targeting. The American president called the president of Syria a "monster". The administration continues to insist, as White said Saturday, the main mission is to defeat the Islamic State of Iraq and Syria (ISIS) and not further intervene in the Syrian civil war. "And maybe we will never go back to Douma". Russian officials had said US and Russian military staffs remained in contact regarding Syria, even as Russian media carried stories in recent days about the potential outbreak of "World War III" as a outcome of a USA airstrike against Assad.
Syria's state-run news agency SANA reported at least three civilians were wounded in the strikes.
Later in the morning, US Ambassador to the United Nations Nikki Haley emphasized that the United States is ready to keep pressure on Syria following military strikes that targeted the country's ability to use chemical weapons.
President Donald Trump is warning Russian Federation and Iran about their association with Syrian strongman Bashar al-Assad's government, as he announces the launch of retaliatory strikes after an apparent chemical weapons attack last week.
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Trump stressed that "America does not seek" a permanent presence in Syria.
Pentagon officials said they met their objectives and struck the heart of the chemical weapons program. He said the three nations have "marshaled their righteous power".
In his televised address from the White House on Friday evening, Mr Trump said the USA was prepared to sustain economic, diplomatic and military pressure on Mr Assad until the Syrian leader ends what the U.S. president called a criminal pattern of killing his own people with internationally banned chemical weapons.
And despite bluster about worldwide law at the United Nations (an obscene observation, given the Kremlin's craven embrace of Assad, who should be prosecuted for war crimes), it appears that the two nuclear-armed superpowers will avoid any direct military confrontation.
"Very soon, very soon, we're coming out", Trump told a crowd in Richfield, Ohio, on March 30.
Only 10 days ago, Trump told national security aides that he wanted U.S. forces out of Syria in about six months.
Saturday's meeting, like the one that took place on Friday just hours ahead of the strike that took out a research facility, storage bunkers, and other infrastructure that supports Syria's chemical weapons program, was requested by Russian Federation.
Trump announced the strikes in a press conference at the White House from around 9:30 p.m.
■ June 8, 2017: USA jets downed an armed Iranian-supported drone that had fired on U.S. troops in southern Syria near a base where the worldwide coalition against Islamic State militants is training Syrian rebel forces.
She also called on Russian Federation to "honor its commitment" to ensure the Assad regime gives up chemical weapons.
President Trump took to Twitter early Saturday morning, "Mission Accomplished!" he wrote.
That's according to a source familiar with the president's plans, who was not authorized to speak publicly. In 2017, the US launched missiles against Syria following reports of a sarin gas attack.
Russian Federation called the emergency meeting following the US -led airstrikes.