Teen who fled Austria to join ISIS was used as a sex slave for new fighters before she was beaten to death

She was killed by ISIS as she tried to flee their stronghold of Raqqa.

Prior to her death, she was forced to be a sex slave for the terror group, according to a Tunisian former extremist who lived with the two girls in the terror group’s de facto capital.

The Tunisian woman said the two Austrian teenagers lived together in the same house and were viewed as a ‘sexual present for new fighters’.

Earlier this year, a United Nations official revealed a girl ‘of Bosnian origin from Austria’ – believed to be Miss Selimovic – died in fighting in Syria.