Iranian authorities have said two people have been hanged for allegedly killing a paramilitary volunteer during protests.
They were named as Mohammad Mahdi Karami and Mohammad Hosseini, meaning four people have been executed since anti-government protests began in September.
All have faced impromptu, closed-door trials that Western governments and human rights groups say are a sham.
The judiciary’s Meezan News Agency said they had been convicted of the murder of Seyed Ruhollah Ajamian, part of the Iranian Revolutionary Guard’s volunteer Basij force.
It is said to have taken place on November 3 in Karaj, outside the capital Tehran.
The Basij are working to suppress protests, attacking and detaining protesters.
IranIts hardline religious rulers have faced some of the most violent anti-government protests in years.
He was motivated by the death of Mehsa Aminiwho died after being detained by the religious police for allegedly not wearing the hijab properly.
Heavily edited TV footage showed the two men confessing to the charges in court, but activists say forced confessions – often using torture – are common.
Mr Hosseini’s lawyer said in a tweet in December that his client had been beaten until he passed out and given electric shocks.
The Revolutionary Court also does not allow defendants to see the evidence against them or choose their lawyers.
Human rights organization Amnesty International said the trials “bear no resemblance to meaningful judicial proceedings”.
Three others have been sentenced to death and 11 sent to jail in the same case.
Allegations of ‘Corruption on Earth’
As well as the murder, the couple were found guilty of “corruption on earth” – a Koranic term punishable by death often used against opponents of Iran’s government.
Two others were executed in December. Following accusations of crimes linked to the protests.
Activists in Iran say at least 16 people have been sentenced to death on charges related to the protests, with 517 people killed in the violence and more than 19,200 arrested.
Officials have not given an official number.
Live ammunition, birdshot, tear gas and batons are used against protesters.
Many women have taken part in protests over Ms Amini’s death – often with no hijab covering their heads.
Meanwhile, a new hardline police chief was appointed on Saturday, according to the state-run IRNA news agency.
General Ahmad Reza Radan was appointed by Supreme Leader Ayatollah Ali Khamenei and is known for his harsh handling of protesters during election protests in 2009.
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