A senior Iranian official threatened to "blow up the heart" of Israel if the Jewish State or the United States attacks Iran.
"Even if one American or Zionist missile hits our country, before the dust settles, Iranian missiles will blow up the heart of Israel," Mojtaba Zolnour said according to news agency reports quoting the official Iranian IRNA news agency.
Zolnour is Supreme Leader Ayatollah Ali Khamenei's representative in Iran's elite military force - the Revolutionary Guard.
Israel, the U.S. and many Western countries believe that Iran is clandestinely using its nuclear program to develop an atomic bomb - charges that Iran denies.
Last week, U.S. and other Western officials opened a dialogue with Iranian officials, with the goal of putting the breaks on Iran's development of a nuclear weapon. The U.S. was also pushing for heavy economic sanctions against Iran if it doesn't cooperate.
But many experts say that Iran is dialoguing just to buy time to finish its development of nuclear weapons.
There has been growing speculation in the media that Israel would attempt an air strike against Iran's nuclear facilities if it becomes clear that international sanctions are not taking effect.
Without speculating on the military option, Israel's Deputy Foreign Minister Danny Ayalon told CBN News in an earlier interview that Israel would have to decide how to proceed by the end of the year if international sanctions fail.