Iran's President Mahmoud Ahmadinejad has ordered an immediate end to spot checks of Iran's nuclear plants by U.N. inspectors.
He made the move on Saturday hours after the International Atomic Energy Agency voted to report Iran to the U.N. Security Council over suspicions it is trying to make atomic weapons.
Mr. Ahmadinejad said voluntary cooperation with the U.N. nuclear watchdog agency must be suspended as of Sunday.
Diplomats in Vienna say 27 I.A.E.A. members voted in favor of the motion to refer Tehran, five abstained and three voted against it.
A top Iranian nuclear official ,Javad Vaeidi responded to the vote by saying Tehran may no longer consider Moscow's proposal for Iran to enrich uranium in Russia. But Russia says its offer is still open.
Iran says its nuclear program is only for peaceful purposes.