Iran has threatened to respond "decisively" to the assassination of nuclear scientist Mohsen Fakhrizada.
According to foreign news agency Reuters, an adviser to a senior Iranian official said that Iran would respond to the death of its nuclear scientist.
Besides, an Iranian newspaper claimed that Tehran's revenge included an attack on the Israeli city of Haifa.
Kamal Kharazi, head of Iran's Strategic Council on Foreign Relations, said in a statement:
In Iran, the chief executive of the daily Kahn newspaper demanded an attack on the Israeli port city of Haifa after proving Israel's role in the assassination of Mohsen Fakhrizada.
It should be noted that the chief executive of the newspaper was appointed by the Supreme Leader of Iran Ayatollah Ali Khamenei.
Saadullah Zari wrote in an article that "the attack should be carried out in such a way that in addition to destroying the port, Israel also suffered heavy human casualties."
The West has long suspected Mohsin Fakhri of being the mastermind of a secret nuclear bomb program.
Renowned Iranian nuclear scientist Mohsen Fakhrizada was shot dead near the capital, Tehran.
Iranian President Hassan Rouhani has accused Israel of killing Mohsen Fakhrizada.
The Israeli prime minister's office declined to comment on the killings.
Zazi Hanabi, an Israeli cabinet minister, said he did not know who did it.
Fakhrizada, a longtime suspect in the Western and Israeli government's secret nuclear weapons program, was ambushed on a highway near Tehran on Friday and shot in his car.
Iran's clerics and military rulers have blamed Israel, a longtime enemy of the Islamic Republic, for the killings.
Iran has in the past accused Israel of killing several Iranian nuclear scientists since 2010.