MOSUL, Iraq (AP) — Thousands of civilians fled Mosul overnight as Iraqi forces advanced north of a sprawling military base near the city’s airport on Friday.

Iraq’s special forces pushed into the Wadi Hajar district in western Mosul and retook the area from the Islamic State group Friday, according to Brig. Gen. Yahya Rasool, spokesman of the Joint Military Operations.

Special forces Brig. Gen. Haider al-Obeidi said clearing operations were ongoing in the area and his forces were close to linking up with the militarized federal police forces who were pushing up along the western bank of the Tigris river.