نهر ديالى
Khanaqin (, ) is the central city of Khanaqin District in Diyala Governorate, Iraq, near the Iranian border (8 km) on the Alwand tributary of the Diyala River. The town is mostly populated by Kalhori-speaking Kurds. Khanaqin is situated on the main road which Shia pilgrims use when visiting holy Islamic cities. The city is moreover rich in oil and the first Iraqi oil refinery and oil pipeline was built nearby in 1927.