Iran Press/ West Asia: A US military official claimed that the attack was a "self-defense strike" against a drone launch site, according to AFP.
The strike came a day after Baghdad had warned Washington against "attacks" on its territory.
"A self-defense strike was carried out on a drone staging site," the US official said on condition of anonymity. It took place "in the vicinity of Kirkuk" and targeted "an imminent threat", he added.
The raid targeted a site used by an armed group affiliated with Hashed al-Shaabi, a coalition of former paramilitary forces integrated into Iraq's regular military, a senior security official in Kirkuk province said.
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