The judiciary said on December 6 that it had also sentenced 11 others to prison sentences for their alleged roles in the death of Ruhollah Ajamian, who was part of the Basij, a volunteer branch under the Islamic Revolutionary Guards Corps (IRGC).

One of those sentenced to death is Hamid Qarahasanlou, a radiologist that human rights groups say was tortured during interrogation and is now in a hospital as a result.

Farzaneh Qarahasanlou, Hamid Qarahasanlou's wife, was sentenced to 25 years and exiled to a prison in the southwestern Iranian city of Ahvaz.

Both of the Qarahasanlous denied any wrongdoing in court and said they were merely participants in protests over the death of a young woman, Mahsa Amini, who died while in custody over allegedly wearing a head scarf improperly.

Several of the defendants were charged with "corruption on Earth," which is punishable by death and often leveled in cases allegedly involving espionage or attempts to overthrow Iran's government.

The cases were decided within six days and after three court hearings.

Prosecutors said the 27-year-old Ajamian was stripped naked and killed by a group of mourners who had been paying tribute to a slain protester, Hadis Najafi, during ceremonies marking the 40th day since her death.

Human rights organizations have strongly objected to the death sentences being issued against protesters in Iran after "sham trials."

"On 1 December, [Hamid Qarahasanlou] was removed from hospital, where he had undergone surgery for internal bleeding, and taken to court for trial while he was heavily sedated and recovering from surgery and then returned to hospital afterwards," Amnesty said in the statement.

"The couple’s first two lawyers dropped their case after intelligence and security agents threatened them," it added.

The BBC quoted an informed source as saying that, during the interrogations, Farzaneh was hit on the head with a baton so many times that, to save herself, she said that her husband may have kicked the victim. She later recanted the statement.

Iran is currently in the throes of unrest as people take to the streets across the country to protest Amini's death on September 16.

Police have met the unrest with deadly force.

The activist HRANA news agency said that, as of November 29, at least 459 protesters have been killed during the unrest, including 64 minors, as security forces try to stifle widespread dissent.

The Oslo-based Iran Human Rights Organization says the number of executions in Iran exceeds 500 this year.

Written by Ardeshir Tayebi based on an original story in Persian by RFE/RL's Radio Farda