Iran’s official IRNA news agency has published a video purporting to show that British-Iranian national Alireza Akbari played a role in the 2020 assassination of the country’s top nuclear scientist.

The claim on Thursday comes a day after Iran sentenced the former deputy defence minister to death on charges of spying for Britain.

London described the death sentence as politically motivated and called for his immediate release...

Iran’s intelligence ministry said Akbari was “one of the most important agents of the British intelligence service in Iran

who had access to some very sensitive centres in the country” and had “fully, knowingly provided information to the enemy’s spy service”.

Fakhrizadeh was widely seen by Western intelligence as the mastermind of clandestine Iranian efforts to develop nuclear weapons, a claim Tehran denied.

The Iranian authorities put out conflicting accounts of how the scientist was killed as he travelled in a car through the town of Absard.