Iranian President Mahmoud Ahmadinejad said Friday that Israel no longer had any reason to exist and would soon disappear.

"This regime, thanks to God, has lost the reason for its existence," Ahmadinejad told a crowd of thousands gathered at a rally in support of the Palestinians in the capital Tehran.

"Efforts to stabilize this fake (Israeli) regime, by the grace of God, have completely failed... You should believe that this regime is disappearing," he said.

Ahmadinejad also called Israeli leaders a "group of terrorists" and threatened any country that supports the Jewish state, as millions of Iranians took to the streets for anti-Israel protests.

"You imposed a group of terrorists ... on the region," Ahmadinejad said, addressing the U.S. and its allies. "It is in your own interest to distance yourself from these criminals... This is an ultimatum. Don't complain tomorrow."

"Nations will take revenge," he told hundreds of thousands of supporters at a pro-Palestinian rally in the capital Tehran.

Ahmadinejad also called the U.N. Security Council "illegitimate," ahead of diplomats' planned circulation of a draft resolution on Iran next week...