According to Anadolu news agency, Turkish jets were seen flying in southern Hatay province's Reyhanli and Kirikhan districts near the Syrian-Turkish border and attacked the posts with explosives.
Erdogan added that Turkey had undertaken such an operation, in order to remove terrorists from its borders in the interests of national security.
It has been listed as a terrorist organization by Turkey, the United States and the European Union.
The PKK is responsible for the deaths of more than 1,200 Turkish security personnel and civilians.
Turkey has been embroiled in a state of emergency since last year, ever since the failed military coup against Erdogan and subsequent terrorist attacks by local militants and the Islamic State group in the country. (ANI)