An image of what is believed to be the young son of an Australian man holding a decapitated head in Syria shows how barbaric the Islamic State "terrorist army" is, Prime Minister Tony Abbott said Monday.
Abbott made the comment while announcing that Australia will likely join airdrops of food and supplies to thousands of Iraqi Yazidis besieged by Islamic State fighters on a barren mountain and may even participate in airlift operations to take them to safety, possibly later this week.
The picture, taken in the northern Syrian city of Raqqa, was posted on the Twitter account of Khaled Sharrouf, an Australian man who fled to Syria last year and is now an Islamic State fighter, The Australian newspaper said.
It reportedly shows Sharrouf's seven-year-old, Sydney-raised son dressed like any other young boy in blue checked trousers, a blue shirt and baseball cap, struggling to hold up the severed head of a slain Syrian soldier by his hair, AFP reported.
It was captioned with the words "That's my boy". Another photo published by the newspaper shows Sharrouf dressed in camouflage fatigues posing with three young boys it said security agencies believe are his sons.
Australia has an arrest warrant out for Sharrouf, who has also been pictured posing with severed heads.