Two Turkish soldiers have been killed and four others injured in an armed attack by militants from the Kurdistan Workers’ Party (PKK) in the country’s volatile southeast.

According to a statement by the Turkish Armed Forces (TSK), the casualties occurred on Monday during clashes with PKK militants in Nusaybin, a Turkish town located on the Syrian border.

The assault came after the TSK said in a statement on Sunday that 15 militants from the outlawed PKK forces had been killed in clashes in Nusaybin and the towns of Sirnak and Lice, which are also located in Turkey’s southeast.

Turkey's largely Kurdish southeast has been hit by waves of violence in clashes between government forces and PKK militants after a ceasefire fell apart in July 2015.

The Turkish military has been conducting offensives against the positions of the group in northern Iraq and Syria as well.

The operations began in the wake of a deadly July 2015 bombing in the southern Turkish town of Suruc. More than 30 people died in the attack, which the Turkish government blamed on the Daesh Takfiri terrorist group.

Following the bombing, PKK militants, who accuse the government in Ankara of supporting Daesh, engaged in a series of attacks against Turkish security forces, prompting Turkey’s military operations in predominantly Kurdish-populated areas.