Turkish warplanes bombed Thursday evening mountainous areas in al-Sulmaniyah region north of Iraq, a Kurdish source told Deutsche Presse-Agentur dpa on Friday.
"Turkish planes bombed Kandil Mountains for three and a half hours," the source said. Sulmaniyah is located some 350 kilometres north-east the Iraqi capital Baghdad, reported dpa.
No casualties were reported from the bombing, the source said.
Turkish planes and artillery often bomb north of Iraq, targeting the Kurdistan Workers Party (PPK).
Turkey blames the separatist group for the deaths of more than 32,000 people since the early 1980s when the PKK began its fight for independence or autonomy for the mainly Kurdish-populated south-east of Turkey.
The PKK is considered by the United States and the European Union to be a terrorist group.