Saeed Abedini has served three years of an eight-year jail sentence for alleged anti-state activities.
The American-Iranian pastor, who lived in the US with his wife, Naghmeh, and their two children, was detained in October 2012 during a visit to see his family.
After a recent visit to see him at Rajaei-Shahr Prison in Karaj, a family member said he fears new charges may be brought against him. Since his imprisonment, the government has repeatedly threatened that his sentence could be extended.
Abedini has consistently asserted that he poses no threat to the government and was in Iran to help with the building of a government-approved orphanage. Abedini says that, having been warned about his involvement with “house churches” in 2009, he had decided to focus on humanitarian activities during subsequent visits.