The Iraqi president announced Tuesday that he will summon Turkey's ambassador and hand him a formal letter of protest over recent Turkish airstrikes on Iraqi territory. The official protest came a day after an airstrike on a military airport in Arbat, southeast of the city of Sulaymaniyah in northern Iraq's semi-autonomous Kurdish region. Turkey often launches strikes against targets in Syria and Iraq that it believes to be affiliated to the Kurdistan Workers' Party, or PKK, a Kurdish separatist group that has waged an insurgency against Turkey since the 1980s. Ankara considers the PKK and allied Kurdish groups in Syria and Iraq as terrorist organizations. (AP)