Sources in the Iraqi police told Aljazeera on Friday the bodies of two Turkish captives had been found in the key oil refinery town in the Sunni Muslim belt that stretches north and west from the Iraqi capital.
The police delivered the two bodies to al-Sharqat hospital.
The reported execution of the two Turks came just a day after the killing of captured Italian journalist Enzo Baldoni.
Turkey's NTV news channel on Wednesday aired footage of two Turks, Abd Allah Ozdemir and Ali Daskin, both engineers captured from their worksite at an unidentified location in Iraq.
The video showed armed fighters threatening to execute them unless their company withdrew from Iraq within 72 hours.
Company pulls out
Turkey's Anatolia news agency later reported that the pair's
employer had announced it was ending operations in Iraq.
The capturing of the two engineers had brought to at least six the number of Turks known to be in captivity in Iraq.
Several Turkish men, mostly truck drivers, have been captured in the war-torn country and then released.
But one Turkish captive was shown in a video posted on Islamist websites on 2 August being blindfolded and shot three times in the head by his hooded captors.