Australian military advisers have reportedly been hit by an Islamic State gas attack in Iraq.
On Sunday, the advisers were working in a unit in Mosul when ISIS forces launched the chemical attack and are believed to have used a type of mustard gas.
No Australians were injured in the attack, but six soldiers suffered breathing problems and were treated in the field, CBS reported.
A further 25 Iraqis required treatment following the attack.
An investigation has been launched to confirm what type of gas was used on Sunday and soldiers have been given masks to protect them in future.
Iraqi forces are fighting to recapture west Mosul from IS after retaking the eastern side earlier this year, while soldiers and pro-government paramilitaries are also operating west of the city as part of the operation.
The jihadist group overran large areas north and west of Baghdad in 2014, but Iraqi forces backed by US-led air strikes have since regained much of the territory they lost.
In addition to parts of western Mosul, IS also holds part of Iraq’s Kirkuk province as well as areas in the country’s west.
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