Iran said on Monday it was losing patience with U.N. inspections of its nuclear programme and announced that its agreement with the Europeans to halt uranium enrichment would soon come to an end. Iran was taking a tough stance ahead of a key meeting at the U.N.'s nuclear watchdog which could decide whether to report Tehran to the U.N. Security Council if it is not convinced Iran's nuclear programme is entirely for peaceful purposes. The United States has accused Iran of having a secret nuclear bomb programme. Iran says its nuclear programme is related solely to generating power. Hossein Mousavian, head of Iran's delegation at the meeting at the International Atomic Energy Agency (IAEA) told reporters the suspension of uranium enrichment was a voluntary gesture by Iran but it would be "just for a short, temporary period". He said the suspension would include far fewer activities than the Europeans had demanded. He gave no indication when Tehran planned to resume uranium enrichment.