A total of 99 PKK terrorists, including a high-ranking member, were killed in anti-terror operations carried out in southeastern Turkey's Hakkari and Şırnak provinces between August 24 and September 7, the Turkish Armed Forces (TSK) said Saturday in a written statement.

Numerous weapons and thousands of pieces of ammunition were seized during the counter-terrorism operations, while 50 Improvised Explosive Devices (IEDs) were destroyed by explosive ordnance teams, the statement elaborated.

A total of 12 shelters, caves and depots used by the terrorist organization were also destroyed, the statement added.

During clashes between the PKK terrorists and Turkish forces, six soldiers were killed and 17 others injured, the statement said. The injured soldiers were brought to nearby hospitals for medical treatment.

Founded in 1978, the PKK has waged a decades-long bloody campaign against Turkey.

The PKK, which is listed as a terrorist organization by Turkey, the U.S. and the EU, resumed its armed campaign in July 2015 after a brief reconciliation period.

Since that time, the PKK has been responsible for the deaths of some 1,200 security personnel and civilians, including women and children, while more than 4,000 security personnel and over 2,000 civilians have been injured.