Russia's Defense Ministry has blamed Israel for the missile attack that left at least 14 dead in Syria early Monday morning, USA Today reported.
But Syrian media blamed the U.S. for the attack.
President Donald Trump tweeted Sunday that there would be a "big price to pay" for the recent "mindless chemical attack" on Syrian civilians. The poisonous gas killed at least 49 people in Douma — many were women and children.
French President Emmanuel Macron vowed Sunday during a phone call with Trump to coordinate a joint response with the U.S. following Saturday's chemical attack.
The U.S. Defense Department issued a statement and denied responsibility for the missiles but said it would "continue to closely watch the situation and support the ongoing diplomatic efforts to hold those who use chemical weapons, in Syria and otherwise, accountable."
What do the Russians say happened?
According to the Syrian and Russian governments, two Israeli Air Force F-15 fighter jets fired eight guided missiles at the T4 military air base in Central Syria just after midnight.
Three Iranians are reportedly among the 14 confirmed dead in the airstrikes. Iran is a staunch ally of Syria.
Fox News reported that Rami Abdurrahman, the leader of the U.K.-based Syrian Observatory for Human Rights, said most of the 14 killed were Iranians or were members of Iran-backed groups.
What about Saturday's chemical attack?
The civil defense force, White Helmets, said entire families were gassed to death Saturday.
Medical centers reportedly treated more than 500 patients who suffered “respiratory distress, burned eyes, foaming at the mouth and other symptoms that included emission of chlorine-like odor.”
But Russian specialists who visited the site said Monday there was no evidence of a chemical attack on Douma. Russian and Syrian governments have denied any wrongdoing against the people of Syria.
The United Kingdom and France have denied responsibility for the airstrikes.
The Israeli government has not yet commented on the attack.
Trump has blamed Russian President Vladimir Putin and Iran for aiding Syrian President Bashar al-Assad's regime.