The parents of a young man named Mehdi Mohammad Karami, who a human rights group believes are at imminent risk of execution for his involvement in the Iranian protest movement, have released a video in which they plead with Tehran's judiciary to spare his life .
Their appeal for the life of Mehdi Mohammad comes as Amnesty International warns that at least 26 people are at risk of execution over the protests, the biggest challenge for the authorities since the 1979 Islamic revolution in Iran.
"I am Mashallah Karami, father of Mohammad Mehdi Karami", says the father in the video released on social media, sitting cross-legged on a carpet and flanked by his wife.
The man describes his son as a "karate champion" who won national competitions and was a member of the national team.
"I respectfully ask the judiciary, please please, I ask you ... to remove the death penalty from my son's case."
His wife, with her arms folded as if cradling a child, then speaks to ask in turn for the death penalty to be revoked.
According to Amnesty International, Karami is one of five people sentenced to death for fatally assaulting a Basij militia member during a funeral ceremony for a protester in the city of Karaj near Tehran.
The sentence was allegedly handed down less than a week "after the commencement of an unfair and expedited gang trial, which bore no resemblance to any meaningful prosecution."
The boy's age was not disclosed, but reports on pro-protest social media channels suggest he is in his early 20s, like the two men already executed in recent weeks.