ANKARA 

The Turkish military on Tuesday retaliated to harassing fire by YPG/PKK terrorists in Syria's northwestern Afrin, officials said.

According to a tweet by the National Defense Ministry, the firing came from Tal Rifaat city in Syria and Turkish military responded with equal force.

In its more than 30-year terror campaign against Turkey, the PKK -- listed as a terrorist organization by Turkey, the U.S. and the EU -- has been responsible for the deaths of some 40,000 people, including women and children. The YPG is its Syrian branch.

Writing by Faruk Zorlu