Reports indicate that political prisoner Dr Hani Yazarlou needs urgent medical treatment following two heart surgeries, but has refused to be taken to hospital after being forced to wear prison clothes,
Dr Yazarlou, a political prisoner both before and after the 1979 revolution, has also seen his wife Nazila Dashti and two sons Hood and Hamed all jailed between 2007 to 2012.
Political prisoner Mehdi Sajedi-far, who suffers serious digestive problems, was arrested on February 2012 by the intelligence ministry and spent two months in solitary confinement before being sentenced to 10 years imprisonment by Judge Salavati or having connection with foreign governments.
This is despite his needing to remain in contact with people abroad due to his work as a researcher and member of the biotechnology and genetic association, and attending international genetics congressional meetings in countries including India, Germany, Austria, France, United States and South Africa.
He has now refused to be transferred to prison on condition that he is forced to wear prison clothes, handcuffs and chains.
Political prisoner Mohsen Negahban has sewn up his own lips and eyes and gone on hunger strike in protest at unbearable conditions in solitary confinement in Zahedan Prison.
Two others prisoners and members of the Sunni minority, Foad Reza-zadeh and Hossein Javadi, were recently released from Rajaii Shahr Prison but have now been rearrested
Mr Reza-zadeh had spent 18 months in Rajaii Shahr Prison and after his release, he tried to escape the country. But he was arrested by security forces in the city of Poldasht and spent 40 days in custody in the intelligence bureau in the city of Oruimeh before being transferred back to Rajaii Shahr Prison.
Mr Javadi had spent 3 years in prison prior to his release, and was then rearrested by the intelligence ministry on August 27 in the city of Bukan and returned to Rajaii Shahr Prison on charges of acting against national security.