By Robin Gedye
Iran is secretly producing enriched uranium for nuclear weapons at a military site in Teheran in direct breach of an agreement signed earlier this week, according to Iran's most prominent opposition group.
The site is said to be in the Lavizan district in north-east Teheran, three miles from a former suspected secret nuclear development facility that the regime razed earlier this year after its existence was revealed by the opposition group.
"The new site in Mozhdeh Street is controlled by Revolutionary Guards and staffed by Iran's four top nuclear scientists, who are working on producing enriched uranium," said a spokesman for the National Council of Resistance of Iran.
"One can only wonder why Teheran did not report its existence to the International Atomic Energy Agency in Vienna."
The claim by the NCRI comes two days after Iran agreed to suspend nuclear enrichment and allow inspectors from the agency to return in order to defuse suspicions that it is seeking to develop atomic weapons. In return, they will receive a range of political and economic concessions from the European Union.
The inspectors are scheduled to present a report on Iran to the IAEA board by the end of next week.
The NCRI is the political wing of the People's Mujahideen. It is banned in the United States as a terrorist organisation but has a record of providing reliable information on Iran's nuclear activities due to its wide range of dissident sources.
Two years ago it disclosed the existence of a secret site at Natanz, 150 miles south of Teheran, which finally confirmed international suspicions that the government was pursuing a clandestine nuclear programme.
An IAEA spokesman in Vienna said the United Nations nuclear watchdog would follow up the latest disclosure "just as we follow up every serious lead".
The NCRI says the Mozhdeh Street site covers 60 acres and houses chemical and biological warfare research facilities as well as the nuclear development project.