Details of a conspiracy to kill a nuclear scientist were revealed when Iran pledged revenge for its murder.
Mohsen Fakhrizadeh, head of Iran’s Defense Ministry research and innovation organization, was killed on Friday.
He was ambushed by 12 murderers on a highway near Tehran and shot down in his car.
The attackers were among a group of 62 people who planned to kill Fakhrizadeh.
The other 50 were reportedly responsible for logistical support.
Iranian clergy and military have blamed the Islamic Republic’s longstanding enemy, Israel, for the killing.
Iran has in the past accused Israel of killing several Iranian nuclear scientists since 2010.
Iranian journalist Mohamad Ahwaze, who claims to have received leaked information from the country’s government and the Iranian Revolutionary Guard, posted details of the scientist’s assassination on Twitter.
He said the attack was planned for a roundabout in the rural town of Absard.
According to reports, the attackers had been watching the victim and knew he would be driving from Tehran to Absard – where the 59-year-old had a villa.
The 12 killers were dispatched to the city while the remaining 50 people provided logistics support – but it wasn’t clear whether they were in Iran or abroad.
The journalist said that all the members of the team who carried out the attack had special training and were involved in security and intelligence services abroad.
According to leaked Iranian data, the assassination team used a Hyundai Santa Fe, a Nissan and four motorcycles to carry out the murder.
They were waiting for Fakhrizadeh at the location of the ambush, Ahwaze said.
There was also a booby-trapped Nissan pickup at the scene.
About half an hour before Fakhrizadeh’s convoy of three bulletproof cars arrived, the electricity in the area was turned off.
When the third vehicle drove by, the Nissan was ignited.
The second car with Fakhrizadeh was then shot at by the 12 assassins, including two snipers.
Ahwaze tweeted : “According to Iranian leaks, the leader of the murder team took Fakhrizadeh out of his car and shot him and made sure that he was killed.”
He added that the attackers escaped and the scientist’s protection group was then taken to hospitals in Tehran.
According to the Iranian leaks, none of the 12 elements involved in the field operations of the assassination were wounded or arrested, Ahzawe added.
The assassination of Fakhrizadeh – referred to by Israel as the “father” of the Iranian nuclear program – has once again exacerbated tensions between the Islamic Republic and its enemies.
Iran will provide a “calculated and determined” response to the assassination of its leading nuclear scientist, said a senior adviser to the Iranian supreme leader.
A hardline newspaper suggested that Tehran’s revenge should include the strike against the Israeli city of Haifa.
Kamal Kharrazi, who is also head of the Strategic Council on Foreign Relations in Iran, said in a statement: “There is no doubt that Iran will give a calculated and decisive response to the criminals who took martyr Mohsen Fakhrizadeh from the Iranian nation.”
Prime Minister Benjamin Netanyahu’s office has refused to comment on the murder.
An Israeli cabinet minister, Tzachi Hanegbi, said Saturday he did not know who carried it out.
Fakhrizadeh’s body was placed in the first of several venerated Shiite Muslim shrines ahead of his burial on November 30, state media reported.