A senior Russian official in Damascus, Dmitry Sablin, told the Russian news outlet Tass that he believed the strike was created to interfere with investigations that had already begun into the chemical attack. Those bases come under the protection of Russian air defense units.
Mr Trump said he was prepared to "sustain" the assault against Syria.
The strikes come as Mr Trump faces a domestic crisis at home as investigations continue into whether his campaign colluded with Russian meddling in the U.S. election on his behalf or has sought to obstruct justice since. "Assad's recent attack are the direct result of Russia's failure to keep that promise", Trump said. Warner. "I look forward to receiving more details from the Administration about the targets and strategic goals of these strikes".
"If it is finished, and there is no second round, it will be considered limited", the official told Reuters.
The third target was a chemical weapons equipment storage facility and an important command post, also west of Homs, Dunford said.
May has said "all indications" point to Syrian responsibility for the attack. Trump said that the attack is a "combined operation with the armed forces of France and the United Kingdom". Syrian television reported that Syrian air defenses have responded to the attack.
"The UK element of the carefully coordinated joint action was contributed by four Royal Air Force Tornado GR4s", a statement from the UK Ministry of Defense said.
Social media quickly reacted to the news as the strikes began in certain areas of the country. "More than 70 people sheltering in basements have reportedly died, with 43 of those deaths related to symptoms consistent with exposure to highly toxic chemicals", the organization said.
He added the the USA and it's allies are prepared for "sustained" response until Syrian government stops use of chemical weapons.
Democratic leaders urged Trump to come up with a clear strategy but also warned him not to widen USA engagement in Syria.
Just weeks ago, Trump said he wanted to end USA involvement in Syria and bring American troops home to focus on the homeland.
Pentagon officials declined to release detailed information about what units carried out the strikes on Friday, citing security concerns.
On Feb. 24, the UN Security Council unanimously adopted Resolution 2401 which called for a month-long cease-fire in Syria, especially in Eastern Ghouta to allow the delivery of humanitarian aid.
Russian Foreign Ministry spokeswoman Maria Zakharova said the U.S. strikes hit when the country "finally" had a chance at peace, she posted on Facebook Saturday. Today, it's a strike on Syria - what's going to stop him from bombing Iran or North Korea next?
"A pre-designed scenario is being implemented".
The Russian ambassador to the U.S., Anatoly Antonov, condemned the airstrikes and warned that "such actions will not be left without consequences".
In fact, Trump took direct aim at the roles of Russian Federation and Iran in aiding the regime, calling the chemical attack and the retaliatory strikes the "direct result of Russia's failure" to ensure Assad did not use chemical weapons.