Iraqi Prime Minister Haider al-Abadi urged all Iraqis to celebrate the recapture of Fallujah Sunday by the security forces and vowed the national flag would be raised in Mosul soon.

"I call on all Iraqis wherever they are to get out and celebrate," he told Iraqiya state television, standing in front of Fallujah hospital with an Iraqi flag around his neck.

"We will raise the Iraqi flag in Mosul soon," he said, referring to Iraq's second city, which is the Islamic State group's last remaining major hub following the retaking of Fallujah.