Imprisoned Iranian Nobel Peace Prize winner Narges Mohammadi began a hunger strike on Monday in protest against what she said was the jail's failure to give her access to medical care, the activist HRANA news agency reported.
HRANA said authorities had not let the 51-year-old go to hospital for heart and lung treatment last week because she had refused to wear a mandatory head scarf for the visit. The news agency did not name its sources.
The Norwegian Nobel Committee on Monday urged Iranian authorities to give Mohammadi the medical help she needs.
"The requirement that female inmates must wear a hijab in order to be hospitalized, is inhumane and morally unacceptable," the committee said.
Iran's judiciary did not immediately respond to a Reuters request for comment.
"Mohammadi has gone on a hunger strike to protest against the authorities' failure to address her demands, including their refusal to transfer her to a specialist hospital," HRANA reported.
"This deprivation continues under the order of the prison authorities," HRANA added.
Mohammadi has been arrested more than a dozen times in her life and this is her third time in Evin prison since 2012.
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