The injured were taken to Kiziltepe and Mardin hospitals.
Security forces have launched an operation to nab the perpetrators of the attack.
The PKK has been designated a terrorist organization by Turkey, the U.S. and EU.
More than 60 security personnel have been martyred, reportedly by the PKK, as tensions in the southeastern region of Turkey have flared up since a bombing linked to Daesh on July 20 in Suruc, which claimed the lives of 34 people.
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