Amir Ali Mirjafari was accused of setting fire to the Gholhak Grand Mosque and also working with the Israeli espionage agency Mossad, the judiciary's Mizan news agency reported.

He is the eighth person to be hanged over the January demonstrations within just over a month.

Rights groups accuse the Islamic republic of using capital punishment to instil fear throughout society and stepping up executions of political prisoners against the background of the war against the US and Israel.

"By baselessly linking his participation in the January protests to Israel and the US, the Islamic Republic continues its strategy of framing domestic civil unrest as foreign espionage to expedite the execution of protesters," Norway-based NGO Iran Human Rights said.

It was not clear when Mirjafari was arrested and "no independent information is available concerning him or his case", it added.

IHR confirmed he was the eighth man put to death over the protests, after fast-track trials in line with the instructions of hardline judiciary chief Gholamhossein Mohseni Ejei.

Since executions resumed on March 19, Iranian authorities have also executed eight members, all men, of the the People's Mujahedin (MEK) opposition group which is banned in Iran.

IHR warned that there was a risk of more executions with "hundreds of protesters currently facing death penalty charges, with at least 30 having already been sentenced to death".

US President Donald Trump on Tuesday told Iran it could boost the chances of success in peace talks with Washington by freeing eight women that he said face execution.

Trump's statement accompanied a re-posting of a claim on X by a pro-Israel youth activist in the United States that eight women faced death by hanging. Photographs of eight unnamed women were posted.

According to rights groups including the US-based Abdorrahman Boroumand Center, one woman named as Bita Hemmati has been sentenced to death over the protests on charges of throwing concrete blocks from a building onto police.

IHR and Paris-based Together Against the Death Penalty (ECPM) said last week Iran in 2025 executed at least 48 women, the highest number recorded in more than 20 years.