Iran said on Tuesday its Supreme Court had upheld the death sentence of Zam, who was captured in 2019 after years in exile. His Amadnews feed had more than one million followers.
State TV said on Saturday Zam, “director of the counter-revolutionary Amadnews network, was hanged this morning”.
France and human rights groups had condemned the Supreme Court’s decision.
On Saturday, press advocacy group Reporters Without Borders (RSF) condemned the execution.
“RSF is outraged at this new crime of Iranian justice and sees (Supreme Leader Ayatollah) @ali_khamenei as the mastermind of this execution,” the group tweeted.
The son of a pro-reform Shi’ite cleric, Zam fled Iran and was given asylum in France.
In October 2019, Iran’s Revolutionary Guards Corps said it had trapped Zam in a “complex operation using intelligence deception.” It did not say where the operation took place.
Nour News, a news agency close to the Revolutionary Guards, said last week that Zam was detained by Guards agents after he travelled to Iraq in September 2019 and brought to Iran.
Iranian officials have accused the United States as well as Tehran’s regional rival Saudi Arabia and government opponents living in exile of stoking the unrest, which began in late 2017 as regional protests over economic hardship spread nationwide.
Officials said 21 people were killed during the unrest and thousands were arrested. The unrest was among the worst Iran has seen in decades, and was followed by even deadlier protests last year against fuel price rises.
Zam’s Amadnews feed was suspended by messaging service Telegram in 2018 for allegedly inciting violence but later reappeared under another name.