Iraq says over 90 percent of the Iraqi territories under IS control were regained.(Reuters Photo)

BAGHDAD, Sept. 11 (Xinhua) -- Over 90 percent of the Iraqi territories under the Islamic State (IS) group's control were regained, Saad al-Hadithi, spokesman for the Iraqi Prime Minister's media office, said on Monday.

Iraqi Prime Minister Haider al-Abadi has declared full liberation of the city of Tal Afar and surrounding areas from the extremist IS militants.

"I declare to you that Tal Afar has joined the liberated Mosul and returned to the homeland," Abadi said in a statement issued by his office.

"The joy of victory has been completed and the entire province of Nineveh has become in the hands of our heroic forces," Abadi said.

The prime minister also vowed to defeat IS all over Iraq, saying "wherever you (IS militants) are, we are coming for liberation, and you have no choice but to die or surrender."

The Iraqi forces still have to launch more offensives to dislodge IS militants from their redoubts in Hawijah in southwestern Kirkuk, the adjacent sprawling rugged areas in eastern Salahudin Province, in addition to the remaining IS strongholds in the border areas with Syria, including the cities of Aana, Rawa and al-Qaim in the western province of Anbar.