Iranian state TV is reporting that inspectors from the UN nuclear watchdog have begun their visit to a heavy water production plant that Iran agreed to open to inspection last month.
The Sunday report quotes Behrouz Kamalvandi, who is spokesman of Iran's nuclear department, as saying the two inspectors are at Arak heavy water production plant, some 250 kilometers (150 miles) southwest of Tehran.
Inspectors from the International Atomic Energy Agency, the IAEA, had visited the site twice over the past years.
Last month Iran agreed to allow expanded UN monitoring at the country's nuclear sites, including the Arak site where plans for commissioning a plutonium reactor have been suspended under a separate interim deal reached with world powers.
This as, Iran's President Hassan Rouhani said the last month's nuclear deal with world powers has already had a positive impact on the country's economy.
Rouhani spoke Sunday while presenting next year's budget to parliament. He told an open session of parliament that, after the "success" of the talks, investors were gravitating to businesses and the stock exchange. State TV broadcast his speech.
"Economic activities have been shifted to the stock exchange from gold, hard currency and real estate," said Rouhani.
The nuclear deal eases some sanctions in return for a halt to parts of Iran's uranium enrichment program.
Western sanctions over the country's suspect nuclear program last year dealt a heavy blow to the economy, especially the currency.
The $68 billion budget predicts a US dollar set to 26,000 Iranian rials. The rial is currently 29,000 to the dollar. Parliament will decide on the budget within months.
Rouhani also said the country's budget aims for more foreign investment, privatization and decentralization of the economy.
He said the budget will decrease the inflation rate, a major priority of the government. Inflation currently stands at about 40 percent but Rouhani said last week he hopes to reduce it to 25 percent by March 2015.
Rouhani said the proposed budget is 50 percent more than current year's budget. It covers Iran's fiscal year that starts March 21, 2014.
This is Rouhani's first budget. He took office in August, succeeding an outgoing president, Mahmoud Ahmadinejad, widely blamed for economic mismanagement.
AP