Two men identifying themselves as Australians have featured in a recruitment video released by insurgents waging war in Iraq and Syria urging others to join the fight.

Sunni extremists from the Islamic State of Iraq and Syria (ISIS) group – which wants to create an extremist caliphate across the Middle East – have rampaged across Iraq in the past two weeks and are currently threatening the capital Baghdad.

The slick 13-minute video posted online by ISIS yesterday, titled There Is No Life Without Jihad, encourages viewers to “respond to Allah”.

Thought to have been recorded several weeks ago in Syria, the video features an Australian – named as Abu Yahya ash Shami – understood to be from Sydney.

The ABC understands the man’s family name is Raad.

Members of the Raad family were convicted of funding a terrorist organisation in 2008.

The words on the screen suggest Raad died in fighting soon after the taping.

“In Australia, in America, the reasons for coming to jihad … are plenty,” the man in the video said.

The second man identifed as an Australian in the video now goes by the jihadi name Abu Nour al-Iraqi, a possible sign he went off to war in Iraq.