Updated

Iraqi Kurdish peshmerga forces say they have completed the operation to retake a string of villages east of the city of Mosul from the Islamic State group, an advance that is part of laying the groundwork ahead of the key battle for Iraq's second-largest city.

Brig. Gen. Dedewan Khurshid Tofiq said on Tuesday that a bridge, taken the day before and leading to southeastern Mosul, could facilitate a troop buildup along an eastern Mosul front. Tofiq says the bridge needs to be repaired first.

Iraqi forces and the Kurdish troops are seeking to encircle Mosul, which has been under IS control for more than two years. It's the last major IS urban stronghold in Iraq.

Iraqi Prime Minister Haider al-Abadi has pledge to defeat IS in Iraq this year.