Iran has executed an individual who was accused of infiltrating a military site during anti-regime protests.

Amirhossein Hatami ⁠was executed on Thursday, the judiciary's news outlet Mizan reported, ⁠after his appeal was rejected ​and ⁠the ‌Supreme Court upheld his ​sentence, The Caspian Post reports, citing foreign media.

The judiciary said he was convicted of entering a restricted military site in Tehran, damaging and setting fire to the facility, and trying to seize weapons and ammunition. He admitted the charges during interrogation, ​Mizan reported.

The first ‌deputy chief ⁠of the judiciary, ​Hamzeh Khalili, said in March that cases linked to the anti-government protests in ⁠January were being ​finalised and sentences carried out. At least 53,000 people were arrested during demonstrations that spread across Iran's 31 provinces, the US-based Human Rights Activists in Iran said.

The protests posed one of the largest challenges to the clerical regime in more than a decade, having been fuelled by Iran's dire economic situation. Demonstrators were faced repression from the regime's security forces, resulting in the deaths of at least 7,000 people, the rights group said. Some media reported a far higher death toll.

The unrest has mostly been quelled by the crackdown and US and Israeli strikes, which began in February. Security forces in Iran have arrested more than 1,500 people since the beginning of the war, a leading human rights organisation said.

Three people arrested during the January protests have been executed since the war began. Saleh Mohammadi, Saeed Davoudi and Mehdi Ghasemi were publicly hanged in the city of Qom on March 19 after being convicted of “waging war against God”.

The New York-based Centre for Human Rights in Iran said the number of arrests was based on Iranian government figures and the real total was probably “far higher”. Among the reasons given by the regime for the arrests are owning Starlink equipment, sharing content with foreign media, espionage, gathering information for foreign governments and attempting to disrupt public security, the centre said.

Amnesty International on Tuesday warned that seven men, including political dissidents and protesters, were at “imminent risk” of execution.