Diyarbakır is one of the largest cities in southeastern Turkey. Situated on the banks of the Tigris River, it is the administrative capital of the Diyarbakır Province. With a population of about 930,000 it is the second largest city in Turkey's south-eastern Anatolia region, after Gaziantep. Diyarbakir is considered the unofficial capital of Turkish Kurdistan. As such, it has been a focal point for conflict between Turkey's government and Kurdish insurgent groups.