Turkey was informed about the attack prior to it.
The first target was a scientific research center outside of Damascus and the second was a chemical weapons storage facility outside of Homs, he said. "The conscience of the global community carries no doubt to that effect", it added.
Turkey, a North Atlantic Treaty Organisation member whose ties with the USA and European countries have been strained recently due to its military operations inside Syria and a crackdown after the failed coup in 2016, has called for restraint by the related parties on resolving the Syria crisis.
Turkey on April 14 welcomed Western strikes targeting Syrian President Bashar al-Assad's regime as an "appropriate response" in retaliation for a suspected chemical attack that left dozens dead.
Erdogan also reiterated that Turkey's "fight against terror in northern Syria will continue without stopping", referring to the ongoing "Operation Olive Branch" in Syria against Kurdish militants.More news: US VP drops summit banquet, abruptly goes to hotel in Peru
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"We see this attack as a sanction against the use of chemical weapons and a stern warning to Assad against attacking his own people with chemicals", he added.
"Turkish and U.S. Chiefs of Staff were in contact upon the order placed by [Recep Tayyip Erdoğan] and Mr. Trump", Bekir Bozdağ, Turkish Deputy Prime Minister, said.
"We spent the night sleepless and followed the operation", Erdogan said at a rally in Istanbul.
He also noted that he spoke to British Prime Minister Theresa May earlier in the day over the operation against Syria and that he voiced hope for the conflict between Russian Federation and the USA to be settled in a peaceful way. Turkey is a vocal critic of Assad's regime in Damascus and backed rebels fighting for his ouster.