Tehran:
Iranian President Mahmoud Ahmadinejad has said international sanctions against his country will not work.
He also said that Tehran was reviewing the option of decreasing cooperation with the United Nations nuclear watchdog after it issued a resolution critical of Iran last week.
Iranian President Mahmoud Ahmadinejad added that Iran was not obliged to inform UN nuclear watchdog, the IAEA of plans to build more nuclear sites.
The West had warned Iran against its plans to build 10 more uranium enrichment sites.