A barrage of Katyusha rockets targeted an Iraqi air base that houses American troops south of the city of Mosul on Friday, two security officials said. There was no immediate word of casualties from the attack.
The rocket fire appears to have originated in Mosul and struck the Iraqi army base in Qayyara, about 60 kilometers (38 miles) south of Mosul, where a U.S.-led coalition is helping Iraqi forces battle remnants of the Islamic State group.
The Iraqi officials who spoke to The Associated Press did so on condition of anonymity under regulations.
There was no immediate claim of responsibility nor was it clear if any of the rockets struck the base.