The Iraqi government and a powerful group of Shia fighters have declared victory over the the Islamic State of Iraq and the Levant group in the key Iraqi province of Diyala.

The offensive was led by the Badr Brigade, a Shia group backing the Iraqi army.

The group held a victory rally on Monday and said it was ready to move north into ISIL strongholds.

Al Jazeera's Jane Arraf reports from Baghdad.

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