Sydney teen Yusuf Zahab believed to have died in IS attack on Syrian jail after begging Australia for help

Family say they are heartbroken and angry' and claim the previous government knew about their son's detention for more than three years

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A south-west Sydney teenager is believed to have died in a Syrian jail months after begging the Australian government for assistance.

Yusuf Zahab, 17, had been detained in Guweiran prison in Hasaka city alongside suspected members of the Islamic State for three years when it was attacked by IS in January in an attempt to free its fighters.

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