Tehran -- Inspectors with the International Atomic Energy Agency (IAEA) resumed work Sunday in Iran, IRNA news agency reported.
On its arrival in Teheran Saturday, the group immediately departed for Natanz, central Iran, to inspect the city's nuclear site where Iran is allegedly carrying out uranium enrichment.
Despite the country's New Year holidays, which last until April 3, the local staff has been asked to come to work to assist the inspectors, Iran's Atomic Energy Organization said.
The IAEA will inspect the nuclear facility in Isfahan, south of Natanz, after the United States voiced concern over "secret nuclear programs" at the site.
The inspectors plan to prepare an initial draft report for IAEA chief Mohammad El-Baradei who is scheduled to visit Iran in the first week of April.
Teheran must disclose all details of its nuclear programs to the IAEA by June. If not, the case might even be brought to the United Nations Security Council where the country could face sanctions despite numerous denials of a secret nuclear program.