Reza Seraj, the IRGC-Intelligence Organization's former foreign intelligence chief who played a critical role in Iran’s overseas assassination plots for many years, died on September 21 after undergoing surgery for a brain tumor.

His death followed reports on September 2 about his deteriorating health, though IRGC-affiliated Fars website had initially denied the severity of his condition.

A longtime member of Iran's security apparatus, Seraj was designated by the US Treasury Department last year for his role in overseas assassination plots and human rights abuses in Iran.

He had earlier served as the head of the Special IRGC Intelligence Directorate, also known as Unit 4000, before being removed after a plot to assassinate an Israeli in Cyprus was uncovered. Following his removal, Javad Ghaffari, a figure expelled from Syria, took over the leadership of this unit.

In the last years of his life, the IRGC brigadier general held the position of spokesperson and deputy for communications at the Supreme National Security Council. However, Seraj came to be recognized for his human rights violations.

Starting his career in the 1990s, Seraj rose through the ranks as a senior interrogator within the IRGC Intelligence. Operating under the alias "Alavi," he became known as “the chief interrogator for many political and student activists, extracting forced confessions through pressure and torture.”

His actions during this period left a mark on the lives of many activists, including Ali Afshari, a political figure who in an interview with Iran International identified Seraj as the lead interrogator during his 2000 arrest.

Ahmad Batebi, a journalist at VOA Farsi also wrote on X: “This accursed individual was one of those who played a significant role in torturing me during interrogation and applying psychological pressure to force a false confession in front of state TV cameras. He also tortured many students and political activists to fit them into the absurd scenarios created by the security agencies.”

Seraj was also appointed head of the Student Basij and later appeared as an "analyst and academic" regularly featured in state-controlled media. As the head of the Student Basij, he was actively involved in suppressing students during the 2009 protests, according to Dadgostar, a site documenting human rights violators in Iran.

Throughout his career, Seraj held various roles within the IRGC, including the political deputy of Sarallah Headquarters in Tehran, deputy head of the IRGC Intelligence Organization, and head of the Prophet Muhammad faculty and Imam Hossein University.

In addition to his political and security roles, Seraj was also involved in the interrogation and torture of Fahimeh Dorri Nogourani, the wife of Saeed Emami, a former Deputy Minister of Intelligence.

Seraj was also one of the commanders responsible for the attack on political prisoners in Ward 350 of Evin Prison on April 17, 2014, an incident that came to be known as the Black Thursday of Evin.

In the aftermath of the attack, political prisoner Gholamreza Khosravi Savadjani reported that Seraj had personally escalated his sentence from three years in prison to execution. Khosravi was hanged less than two months later, on June 1, 2014, in Rajai-Shahr Prison.

Hossein Salami, IRGC Commander-in-Chief, praised Seraj in a statement on Saturday, calling him "effective" in confronting what he described as the "sedition movement," a reference to anti-government protests. Salami said, “Seraj played a significant role in confronting sedition … and raising awareness in dealing with various deviations that threatened the Islamic Revolution.”