"In total, 23 targets, including vehicles... were destroyed," said Anadolu, citing military sources.

The sites struck included military bases, arms depots and logistical warehouses, the state agency said.

Turkey on Saturday said it had hit 54 "targets" in northern Syria and Iraq belonging to the Kurdistan Workers' Party (PKK) and the People's Protection Units (YPG).

It came after nine Turkish soldiers were killed the previous day in clashes with suspected PKK fighters at a Turkish military base in northern Iraq.

The PKK is a group that has been blacklisted by Turkey and many of its Western allies as a terrorist organisation.

The YPG is a Syrian Kurdish militia which is a central element of US-allied forces in a coalition against Islamic State.

But Turkey, which claimed its air strikes were in "self-defence", considers the YPG to be terrorists.

Ankara often targets Kurdish fighters in northern Iraq, in the autonomous region of Kurdistan.