At least one air strike hit a military airport in Syria, according to the country's state media.

Multiple media outlets on Sunday night both cited Syrian state media as saying that the air base in question had been hit by the strike. Loud explosions were heard above the base, according to the BBC.

State media reported that several had been killed and wounded in the strike, according to AFP.

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A Syrian news agency said that the country's air strike defenses confronted the incoming attack on the base and managed to shoot down eight missiles, The Associated Press reported.

Syria and Russia both blamed Israel for the strike.

Initial reports were unclear as to who was responsible for the strikes. Pentagon officials denied responsibility for the strikes, according to the AP.

"At this time, the Department of Defense is not conducting air strikes in Syria," the Pentagon said in a statement provided to CNN. "However, we continue to closely watch the situation & support the ongoing diplomatic efforts to hold those who use chemical weapons, in Syria and otherwise, accountable."

The reports come after major international outcry in response to reports of a chemical attack that killed dozens of people in a hospital in Duma, Syria, on Saturday.

President Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE earlier Sunday warned Syria and its allies would pay a “big price” after reports of the chemical attack. Trump ordered missile strikes on Syria almost exactly one year ago after a similar chemical attack.

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Also on Sunday, Trump held a phone call with French President Emmanuel Macron. The two vowed a "strong, joint response," according to the White House.

The attack comes one day before incoming national security adviser John Bolton’s first official day.

Updated on April 9 at 6:10 a.m.