Evin Prison is situated within the hills north of Tehran.
Sources instructed BBC Persia that Faramarz Javizad, 60, was bleeding from his abdomen and was taken to hospital, however was later returned to jail.
Authorities mentioned they refused to take away him from the jail infirmary after his blood stress dropped considerably on Friday.
Initial experiences mentioned Mr. Javizad was a twin American-Iranian citizen, however the United States insisted he was not a citizen.
“We haven’t any report of him being a lawful everlasting resident,” State Department spokesman Matthew Miller instructed reporters in Washington.
The information comes per week after Iran launched 5 American-Iranians as a part of a prisoner alternate.
Iran’s judicial Mizan information company quoted the Tehran Provincial Prisons Department as saying on Monday that Javizad had been detained in Evin for 2 months on numerous monetary expenses, throughout which period he had been handled 5 instances for digestive issues. I instructed you.
He added that he had lately undergone abdomen surgical procedure and was subsequently discharged from the hospital “at his personal request.”
Javizad’s situation worsened on Saturday and he was instantly transferred to a hospital, jail authorities mentioned. Doctors and nurses carried out CPR, however their lives couldn’t be saved.
However, this account was denied by sources who spoke to BBC Persia’s Ali Keladpil.
That night time, a nurse on the clinic instructed him that he was feeling sleepy and eliminated his IV drip.
Mr Javizad’s situation deteriorated on Saturday and he died whereas ready to be taken to hospital, the official added.