"We strongly condemn the attack and we have the strong suspicion it was carried out by the regime, whose record on the use of chemical weapons is known by the international community," the Turkish foreign ministry said in a statement on Sunday.
The ministry added that the alleged attack proves that UNSC resolutions on chemical weapons were "once again" ignored and called for a comprehensive investigation into the matter.
At the same time, US President Donald Trump took to Twitter on Sunday to put the blame for the attack on Syria, accusing Russia and Iran of supporting Syrian President Bashar Assad, claiming Damascus would pay a "big price."
At the same time, the Russian Defense Ministry noted that the allegations of chemical weapons' use had been spread by NGOs, including the infamous White Helmets, who have been repeatedly busted faking their reports.
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While Damascus has strongly denied the claims as false, an official Syrian source that was not disclosed told state news agency SANA that news outlets linked to Jaysh al-Islam militants disseminate reports of chemical attacks in order to accuse the Arab Republic's government and prevent its army from advancing in East Ghouta.
Damascus has repeatedly denied the accusations, saying that the Organization for the Prohibition of Chemical Weapons (OPCW) confirmed the complete elimination of the government's stockpile of chemical weapons in 2016.