British-iranian twin national alireza akbari, who was sentenced to death in iran, has been accomplished.
Mr akbari's circle of relatives were requested to visit his prison for a "final go to" on wednesday and his wife stated he were moved to solitary confinement.
The ex-deputy iranian defence minister became arrested in 2019 and convicted of spying for the UK, which he denied.
United kingdom high minister rishi sunak stated the execution changed into a "callous and cowardly act, carried out with the aid of a barbaric regime".
Iran's rulers had "no appreciate for the human rights of their very own humans" mr sunak said, adding that his thoughts were "with alireza's buddies and family".
Uk overseas secretary james cleverly said the execution might "now not stand unchallenged".
The iranian judiciary's legitimate information outlet mizan mentioned on saturday that alireza akbari had been hanged, without specifying the date when the execution happened.
The information got here after iran published a video of mr akbari in advance this week displaying what seemed to be forced confessions, and after the united states's intelligence ministry had described the british-iranian as "one of the maximum essential retailers of the british intelligence service in iran".
However bbc persian broadcast an audio message on wednesday from mr akbari wherein he said he were tortured and pressured to admit on digicam to crimes he did now not devote.
The usa had also joined calls for iran not to execute mr akbari. Us diplomat vedant patel stated "his execution would be unconscionable" and condemned the prices towards him as "politically prompted".
The United Kingdom overseas office has been assisting mr akbari's circle of relatives and had again and again raised his case with iranian authorities. It had asked pressing consular get right of entry to, but iran's government does now not recognize twin nationality for iranians.
'tortured for 3,500 hours'
In mr akbari's audio message he said that he became dwelling abroad some years in the past while he become invited to go to iran on the request of a top iranian diplomat who changed into involved in nuclear talks with world powers.
Once there, he adds, he became accused of acquiring pinnacle secret intelligence from the secretary of iran's ideal national safety council, ali shamkhani, "in change for a bottle of fragrance and a blouse".
Mr akbari alleged that he changed into "interrogated and tortured" through intelligence retailers "for greater than 3,500 hours".
"through the use of physiological and psychological techniques, they broke my will, drove me to madness and pressured me to do something they wanted," he said. "through the pressure of gun and demise threats they made me confess to false and corrupt claims."
He additionally accused iran of looking for "to take revenge on the UK with the aid of executing me".
Hours after the audio message changed into broadcast, the mizan news enterprise confirmed for the first time that mr akbari have been observed guilty of espionage, and that the ideal courtroom had rejected his appeal.
Ties between the United Kingdom and iran have deteriorated in latest months because the united kingdom imposed sanctions on iran's morality police and different pinnacle safety figures, in reaction to the country's violent crackdown on anti-authorities protesters.
Iran has arrested dozens of iranians with twin nationality or foreign permanent residency in latest years, mostly on spying and country wide security fees.
British-iranian residents nazanin zaghari-ratcliffe and anoosheh ashoori were released and allowed to leave iran last yr after the UK settled a longstanding debt owed to iran.
However, at least two other british-iranians continue to be in detention, which include morad tahbaz, who also holds us citizenship.