Fighters attacked a state-run natural gas plant outside the Iraqi capital on Sunday morning, killing at least 11 people, officials said.
A police officer said the assault started at dawn with a suicide car bomber hitting the main gate of the plant in the town of Taji, about 20 kilometers (12 miles) north of Baghdad. Then several suicide bombers and others broke into the plant and clashed with the security forces.
He added that 15 other troops were wounded.
A medical official confirmed the casualty figures. Both officials spoke on condition of anonymity as they were not authorized to release information.
Amateur footage from the attack showed a massive fireball exploding into the sky above the Iraqi capital.
— Hamdi (@HamdiAlkhshali) May 15, 2016
The Islamic State has recently increased its attacks far from the front lines in a campaign that Iraqi officials say is an attempt to distract from its recent battlefield losses.