Iranian opposition leader Mir-Hossein Moussavi called for a referendum to clarify whether the people would continue to support the policies of President Mahmoud Ahmadinejad, opposition websites reported Tuesday.
"Let's hold a referendum to see whether the people still support his adventurous and destructive policies," Moussavi said in a statement, dpa reported.
Moussavi was referring to the latest doubts voiced by Ahmadinejad over the September 11, 2001, terrorist attacks and his accusations of US involvement.
Ahmadinejad also said on several occasions that Iran was, besides the United States, the only world power and that the US was on the verge of collapse as a world power.
"With such dangerous illusions, the regime is destroying all bridges to the outside world," Moussavi said.
The former prime minister said that although some in the Arab world might be impressed by Ahmadinejad's remarks, he added that "the real impacts will be reflected in the market," referring to the negative impacts of sanctions.
Moussavi and former parliament speaker Mehdi Karroubi lost the presidential election to Ahmadinejad. They accused him of fraud and have not acknowledged his re-election.
Moussavi, Karroubi and the two ex-presidents - Mohammad Khatami and Akbar Hashemi-Rafsanjani - currently form the country's opposition quartet.