Sunni armed group controlling Mosul tries to evade US air strikes and Kurdish forces by turning to smaller units.
Sunnis displaced by fighting say they feel targeted by the Shia-led government in Baghdad.
Sectarian tensions have intensified in Iraq after dozens of Sunni Muslims were killed while they were praying on Friday.
The political process to form a new government is in danger and some Sunnis displaced by fighting say they feel targeted by the Shia-led government in Baghdad.
Al Jazeera’s Zeina Khodr reports from Kirkuk.