Turkish security forces have found a U.S. military uniform during counter-terrorism operation in Nusaybin district of southeastern Mardin province early Friday, an unnamed security source said.
According to the source, who spoke on condition of anonymity due to restrictions on speaking with the media, security forces also found weapons and medical equipment during the operation.
Nusaybin district has been the focus of a counter-terrorism operation since mid-March.
In the recent past, the PKK terrorists reportedly vandalized mosques in the district.
The PKK-also seen as a terrorist organization by the U.S. and the EU-resumed its 30-year armed campaign against the Turkish state in July 2015.
Since then, over 400 security personnel, including troops, police officers and village guards have been martyred and more than 3,700 PKK terrorists killed in operations across Turkey and northern Iraq.