Turkish security sources say Turkish fighter jets have carried out a new barrage of cross-border airstrikes against Kurdish rebels in northern Iraq, killing at least 55.
The sources said the strikes targeted camps and other sites used by the Kurdistan Workers Party, or PKK.
Turkish security forces and the outlawed PKK have been trading fire on a near-daily basis since the collapse of a two-year-old cease-fire and peace process in July.
Turkish warplanes have been carrying out frequent bombing raids on PKK camps in mountainous northern Iraq and in Turkey's mainly Kurdish southeast. The rebels have responded with a string of bloody attacks on security forces.
More than 100 soldiers and police have been killed since the open conflict resumed. The increasing death toll has resulted in nationwide protests by Turkish nationalists who are targeting the PKK as well as Turkey's wider Kurdish minority.