Iraq's Independent High Electoral Commission (IHEC) announced that voter turnout was highest in the city of Dohuk, near the Turkish border, with almost 86 per cent of voters there participating.
In Arbil, the seat of the Kurdish Regional Government, 79 per cent of eligible voters cast ballots. In the city of Suleimaniya, 74.5 per cent of voters participated, the IHEC said.
Some 2.5 million Kurds were eligible to vote. Official results are not expected until early next week.