Iraqi governor's aide murdered after 'insult' to Mosul women

The nephew of an Iraqi provincial governor where government forces are battling the Islamic State group has been shot dead in the country's north, officials said.

The shooting took place in the Iraqi Kurdistan "capital" Erbil, just hours after Nowfal al-Aqoub - the governor of Nineveh - made controversial remarks about children being fathered by IS fighters in the province.

The killing of Aqoub's nephew - who was also his personal driver - comes as Iraqi forces continue to prepare for the battle to retake Mosul, the capital of Nineveh.

Sifuk Watban al-Sultan died of a single gunshot to the head on Friday night near the governor's house in Erbil, the governor's secretary told AFP.

A Nineveh provincial councillor, who also spoke on condition of anonymity, confirmed Sultan's death.

They said that Kurdish security forces had subsequently removed surveillance cameras from the house as part of the investigation.

The motive for the killing was not immediately clear, but it came after Aqoub made remarks at a conference in Baghdad earlier on Friday that were criticised by a political rival.

The governor said that IS fighters had fathered children under temporary marriages as part of so-called "sexual jihad", a practice used by the group to motivate its militants.

Some of the women involved - including some of those who travelled to the Middle East from Europe to support IS - have apparently participated voluntarily, but others may have been coerced.

While Aqoub was apparently criticising IS, the office of former parliament speaker Osama al-Nujaifi issued a statement accusing him of insulting the women of Mosul.

Iraqi forces have been conducting operations to set the stage for the battle to retake Mosul from IS, which has held it since June 2014.

But they still have significant ground to cover as well as logistical preparations to make before a final assault can be launched.