Hamed Ahmadi, a Sunni prisoner of conscience awaiting execution in Iran, collapsed and fell unconscious on Monday in Ghezel Hesar prison, Karaj.
According to reports, prison officials refused to take him to the prison infirmary.
Hamed, who has been on hunger strike since November 4th, 2013, was said to be in a serious condition. His health had been deteriorating due to internal bleeding from the stomach and injuries caused by being beaten by prison guards, coupled with the effects of the hunger strike.
Hamed and five other prisoners began a hunger strike on November 4th 2013, to protest against the news that they would be transferred to a new ward. There were fears the transfer was in preparation for their execution.
They were violently moved to solitary confinement on Wednesday 6th November, and suffered injuries when they were beaten by guards.
One of the men, Syed Hadi Hosseini, was transferred back to section 4, Unit 3 of the prison, after his health deteriorated rapidly due to suffering from seizures.
In recent days, the remaining five men were transferred to a new section of the prison, where they remained on hunger strike.
According to reports, there is increasing concern that the men will be executed soon. The six prisoners were all scheduled to be executed in September this year.
Their execution was postponed for a month by the authorities, and they are now once again in danger of execution.
A source told HRA News Agency , "officials from the Ministry of Intelligence informed [the families] that the death sentences for the six men was binding, and would be implemented soon."