A car bomb attack killed two Turkish soldiers in the Kurdish-dominated southeast of the country, after separatist rebels warned they would no longer observe a truce after Ankara’s air strikes on their positions in Iraq

A car bomb attack killed two Turkish soldiers in the Kurdish-dominated southeast of the country, after separatist rebels warned they would no longer observe a truce after Ankara's air strikes on their positions in Iraq, officials said Sunday.

Turkey has launched a two-pronged "anti-terror" cross-border offensive against ISIL terrorists and Kurdistan Workers Party (PKK) militants after a wave of violence in the country, pounding their positions with air strikes and artillery.

But the expansion of the campaign to include not just ISIL targets in Syria but PKK rebels in neighboring northern Iraq bitterly opposed to the militants has put in jeopardy a truce with the Kurdish militants that has largely held since 2013.

The PKK on Saturday said that the conditions were no longer in place to observe the ceasefire, following the heaviest Turkish air strikes on its positions in northern Iraq since August 2011.

The car bomb went off as the soldiers were travelling on a road in the Lice district of Diyarbakir province late Saturday, the statement from the local governor's office said.