As Iranian and Russian engineers began loading fuel into Iran's first nuclear power plant on Saturday, Iranian President Mahmoud Ahmadinejad told Qatari newspaper Al-Shark that if the Islamic Republic's nuclear facilities were attacked, the response from Teheran would be "worldwide" in its scope.

"Our possibilities would be limitless and would encompass the whole world," said Ahmadinejad.

Ahmadinejad discussed Israel, stating that the Jewish state would like to attack Iran but understands that the Islamic Republic is a "fortress that cannot be destroyed" and that the Iranian response to such an attack would be harsh and painful.

"I don't believe their American masters would let them attack," Ahamadinejad added on Israel.

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