No coalition troops hurt in rocket attack at Iraq base

A barrage of Katyusha rockets targeted an Iraqi air base that houses American troops south of the city of Mosul on Friday, officials said. No members of the US-led coalition were injured.

The rocket fire appears to have originated in Mosul and struck the Iraqi army base in Qayyara, about 60 kilometres (38 miles) south of Mosul, where coalition forces are helping the Iraqis battle remnants of the Daesh group, Iraqi security officials said. They spoke to the media 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.

Iraqi officials did not immediately say whether there were any casualties, though a coalition spokeswoman later said no coalition troops had been injured.

"Coalition forces are in Iraq at the invitation of the Government of Iraq to defeat ISIS remnants," US Marine Corps Capt. Marisa Roberts said, using a popular acronym for the Daesh group. "We will not be deterred by these attacks and maintain the right to defend ourselves."

Iraq announced victory over Daesh two years ago, but the extremist group is still active through sleeper cells and frequently mount attacks on Iraqi security forces.

Some hard-line Iraqi militias loyal to Iran have recently threatened to carry out attacks against Americans in the country. The US maintains about 5,000 troops in Iraq.

American forces withdrew from Iraq in 2011 but returned in 2014 at the invitation of the government to help battle Daesh after it seized vast areas in the north and west of the country, including Iraq's second largest city, Mosul. A US-led coalition provided crucial air support as Iraqi forces regrouped and drove Daesh out in a costly three-year campaign.

Associated Press