"The director general of the foreign ministry, Aharon Abramovich, and his deputy, Eitan Bentsur, consulted on this matter last week," Foreign Ministry spokeswoman Tali Samesh told AFP.

The Jewish state considers the Islamic republic its enemy number one following Ahmadinejad's repeated calls for Israel to be wiped off the map.

According to a report in the Maariv daily, Israel is examining whether other countries, like main ally the United States and Great Britain, could eventually join in the suit.

Israel, widely considered the Middle East's sole if undeclared nuclear power, fears that Tehran is trying to develop atomic weapons under the cover of its nuclear power program.

The Islamic republic denies the charge, saying the program is for peaceful purposes.

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