Turkish media say mourners, waving the red-yellow-green banners of the outlawed rebel group, chanted anti-government slogans as they marched toward the cemetery in the southeastern city of Hakkari on Tuesday.

The weekend’s rebel losses have fueled tensions in the run-up to June 12 national elections. Rebel supporters have attacked police with stones and firebombs in the southeast and in Istanbul.

The rebels have been fighting for autonomy in the Kurdish-dominated southeast since 1984 and have threatened to intensify their attacks if Turkey does not agree to negotiations by June 15.