In a statement, the ministry said 80 arrests were made in southeastern Diyarbakir province. Others took place in Istanbul, southern Mersin, and southeastern Van, Sirnak, Sanliurfa, Batman and Mardin provinces.
Many terror group-related documents and digital material were seized during the operations.
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.
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