Syrian forces had used barrel bombs and rockets on Saturday, he said.
Participants in a fragile ceasefire in Syria need to give peace a chance, USA officials said Sunday, following reports of truce violations on its second day.
Both Russia and the United States have posted tweets urging Syrians to report ceasefire breaches so that they can be investigated and adjudicated.
A top official with the Syrian opposition has blamed the government and its allies for cease-fire violations that killed more than two dozen people, warning it will be hard to resume peace talks next month.
The main players in Syria’s war traded accusations on Sunday over violations of the first nationwide ceasefire in the five-year conflict, but the truce remained largely intact on its second day. He says Russian warplanes carried out 26 air strikes on Sunday alone, targeting rebels who were abiding by the truce. The group later joined forces with other militants and attacked the Kurdish town of Tell Abyad.
Under its terms, groups who have signed up to it should not be attacked, but action against UN-designated terrorist organizations such as Islamic State and Syrian al-Qaeda branch the al-Nusra Front is still allowed.
Erdogan expressed hope that “today or tomorrow this cease-fire will be secured and that calm prevails in Syria” after noting that it is only being adhered to “in about one-third” of the war-torn nation.
Erdogan made the remarks at a news conference in Istanbul prior to embarking on a trip to Africa.
More than 250,000 Syrians have been killed and a million injured.
As Saturday drew to a close, an worldwide task force set up to monitor the fighting, co-chaired by the United States and Russian Federation, said the first day of the truce had been largely successful.
The opposition is waiting for answers about how the cessation of hostilities in Syria, which came into effect at midnight on Friday, is being monitored, he said.
But “on the whole, the ceasefire regime in Syria is being implemented”, said Lt Gen Sergei Kuralenko, head of Moscow’s coordination centre in Syria.
Meanwhile, Rodi Osman, the head of the Syrian Kurdish mission to Moscow, has also said that Turkish forces have once again fired shells into Syrian towns controlled by Kurdish forces, violating a ceasefire that has recently come into effect in the Arab country.
It was not clear if the raids hit areas covered by the ceasefire, which excludes territory held by ISIL and Al Nusra.
The co-chairs of the International Support Group for Syria (ISSG), Russia and the United States, will be responsible for addressing violations, not the U.N.