An American-Iranian reporter jailed by Tehran for eight years on charges of espionage¹ has gone on hunger strike, her father has said.

一位美籍伊朗女士的父亲称，他女儿因间谍活动的罪名被德黑兰官方囚禁八年，目前已绝食抗议。

Ms Saberi has appealed against her sentence

Reza Saberi said his daughter Roxana told him she had stopped eating five days ago.

"I'm very worried," he told Reuters news agency.

Ms Saberi was convicted of being an American spy and sentenced behind closed doors by the Revolutionary Court in Tehran a week ago.

She has become somewhat of a cause celebre（著名的讼案）, with US President Barack Obama expressing dismay（沮丧） at her conviction and rallies called to demand her release.

Mr Obama and Ms Saberi's family have insisted she is not a spy.

But Iranian President Mahmoud Ahmadinejad has refused to intervene（插入，调停）, insisting the courts acted independently and that she will be accorded her full rights.

Ms Saberi has lodged²（临时住宿，安顿） an appeal, which Iranian authorities say will be heard fairly and quickly.