It said the attack left people dead and wounded.
He said that after conferring with his military advisers, he would soon decide on how to respond, and against whom.
"The Israeli attack on the T-4 airport was carried out with F-15 aircraft that fired several missiles from above Lebanese territory", SANA said, citing a military source.
Syria's state run news agency SANA has said the missile strike was most likely an 'American aggression.
United States government sources say Washington's assessment of Saturday attack was that chemical weapons were used.
When asked about the explosions, an Israeli spokeswoman declined to comment.
The EU also said evidence pointed to the use of chemical weapons by Assad's forces.
Fielding questions at the White House, Trump press secretary Sarah Sanders said it would be "outrageous" to say that Trump's recent announcement that he intends to remove all US forces from Syria in the coming months had emboldened Assad.
China to reduce auto tariffs after Trump criticism
"It has said it will fight with comprehensive countermeasures: trade, services, investment, finance and many others", Ruan said. The industries and companies affected represent a significant portion of the trade between the world's two largest economies.
The Syrian Observatory for Human Rights, a British-based monitor, said at least 14 people were killed including some fighters of various nationalities, a reference to Iranian-backed Shi'ite militia members, mostly from Iraq, Lebanon and Iran fighting alongside the Syrian army.
The ministry says Syria shot down five out of the eight missiles that targeted the base.
Israeli opposition lawmaker Yair Lapid told Army Radio: "Israel will not accept an Iranian military presence in Syria and will not accept Iran's creeping entrenchment in Syria and this has costs".
Hours after the attack, the Army of Islam rebel group agreed to surrender the town and evacuate their fighters to rebel-held northern Syria, Syrian state media reported.
Nick Heras, an analyst at the Centre for a New American Security, said Israel appeared to have seized on a moment of global outrage over Douma to strike Syria.
The medical relief organisation Syrian American Medical Society (SAMS) and the civil defence service, which operates in rebel-held areas, said in a joint statement 49 people had been killed in the attack.
Those reports could not be independently verified because of a government blockade around the town.
The U.S. Pentagon said it was not conducting air strikes in Syria "at this time", formally denying the Syrian state television report.
USA threatens to target Syria over alleged chemical attacks
US Defence Secretary James Mattis yesterday pointed towards Russia's role, and said he would not rule out a military response. According to Syrian media , Syrian and Iranian forces are already on the move out of fear of possible USA airstrikes.
"The staged nature of this action is something of which we have no doubt", he said.
The United States launched a missile strike on a Syrian air base a year ago in response to the killing of dozens of civilians in a sarin gas attack in an opposition-held town in northwest Syria. He criticized Russian Federation for what he suggested was its failure to ensure the elimination of Syria's chemical weapons arsenal under terms of a 2013 agreement. The group also agreed to give up its prisoners, a key demand of the government.
"Our military specialists have visited this place. and they did not find any trace of chlorine or any other chemical substance used against civilians", Lavrov said.
Syrian state media said dozens of civilians who had been held for years by the rebels were set free.
The attacks, which killed a number of Iranian fighters who were allied to Bashar al-Assad's regime, are believed to have come in response to an alleged chemical attack on Saturday.
In his tweets Sunday, Trump called Assad an "animal" and delivered a rare personal criticism of Putin for supporting him.
More than 500 people, mostly women and children, were brought to medical centers complaining of difficulties breathing, foaming at the mouth and burning sensations in the eyes. Some had bluish skin, a sign of oxygen deprivation.
In recent weeks, government forces have recaptured villages and towns in the eastern Ghouta suburbs of the capital.
CWG: India lift historic gold in men's TT team event
England defeated Singapore to win the third place match while Nigeria takes on India to determine the Gold and Silver winners. South Africa has traditionally fielded strong fours teams at the quadrennial showpiece with the new proving their class.
Syria denies ever using chemical weapons during the war and says it eliminated its chemical arsenal under a 2013 agreement brokered by the US and Russian Federation. Russia's United Nations ambassador, Vassily Nebenzia, accused Washington of deliberately stoking worldwide tensions by threatening Russian Federation in a tone "beyond the threshold of what is acceptable, even during the Cold War".