As a US-led mixed Kurdish and Arab force advances on ISIS-held Mosul, an apparent ISIS "sleeper cell" of at least some 30 fully armed militants came to life in Kurdish-held Kirkuk, attacking government, police and security buildings. At a power station in Dubis, on the outskirts of the city, several engineers and workers were killed as militants detonated car-bombs and suicide vests. US-led coalition warplanes bombed a building in central Kirkuk that had been taken by the militants, and street-fighting rages across the city. The death toll so far is put at nearly 60, with twice as many wounded. (Rudaw, BasNews, KUNA)