The reported attacks come just days after Ankara blamed the Kurdistan Workers' Party (PKK) for last Sunday's deadly bombing in central Istanbul.

"#Kobane, the city that defeated ISIS, is subjected to bombardment by the aircraft of the Turkish occupation," tweeted Farhad Shami, a spokesman for the Kurdish-led Syrian Democratic Forces (SDF).

Turkey considers the Kurdish People's Protection Units (YPG) -- the main component of the SDF -- an extension of the outlawed PKK.

The PKK has denied any involvement in the Istanbul attack, in which six people were killed.

Kobane, a Kurdish-majority town in Syria near the Turkish border was captured by the self-styled Islamic State group in late 2014, before Kurdish fighters drove them out early the following year.