Iran is running a secret uranium enrichment site, an exiled opposition group said on Wednesday, AFP reported. Alireza Jafarzadeh, deputy director of the National Council of Resistance of Iran (NCRI), said that there is a site hidden north east of Tehran."Despite the Iranian regime's claims that all of its enrichment activities are transparent ... it has in fact been engaged in research and development with advanced centrifuges at a secret nuclear site called Lavizan-3," he said. He reportedly showed reporters satellite images corresponding to his claims. "Since 2008, the Iranian regime has secretly engaged in research and uranium enrichment with advanced... centrifuge machines at this site," Jafarzadeh said.