Islamic State fighters used an Austrian teenager as sex slaves and a ‘gift’ for fighters before brutally murdering her with a hammer, according to new reports.

British newspaper The Sun reports Samra Kesinovic, 17, was kept in a house and used as ‘gifts’ for jihadists after they fleeing her home country with 16-year-old Sabina Selimovic to join the group.

The information reportedly comes via a Tunisian woman who says she was kept in the same house as Kesinovic.

She said the teenage was forced into sexual acts with fighters and tried to flee her captors several times before she was killed.

View photos Samra Kesinovic, 17, (left) and Sabina Selimovic, 16, (right) fled to Syria and became ISIS poster girls. Photo: Supplied More

After her final escape attempt, Kesinovic was reportedly so badly injured with a hammer that she died.

Earlier reports suggest Sabina Selimovic may have met a similar fate.

Austria’s foreign ministry has not confirmed the reports.

The news comes as it is revealed Islamic State has a special set of rules on the treatment of its female captives.

Reuters reports a document obtained by the US government spells out that fighters cannot have sex with their captives if they are menstruating or pregnant, or if they have had sex with the daughter of their captive.





Men are forbidden from having sex with captives if they have ‘given them away’ to their sons, or if they ‘own’ them jointly with another man.

Men are also not allowed to have sex with slaves owned by their wives, according to the document.

Kesinovic and Selimovic were initially used as ‘poster girls’ for the terrorist group after they travelled to Syria after being brainwashed by a radical preacher in Vienna.

The two teens were shown wearing Islamic headbands and brandishing Kalashnikov rifles surrounded by masked male jihadists in what looks like an ISIS recruitment image.

View photos Picture: Interpol More

Reports of the girls' whereabouts have been circulating since earlier in the year, with the Unites Nations reporting they received information that one of them had died.

“We received information just recently about two 15-year-old girls, of Bosnian origin, who left Austria,” Scharia said.

“Both were recruited by Islamic State. One was killed in the fighting in Syria, the other has disappeared,” reports now propose this explains Samra’s disappearance.

Reports now suggest that both Austrian women are now believed to be dead.

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