United Nations nuclear inspectors are to release their latest report on Iran's nuclear program this week, as Western diplomats build a case for stronger sanctions against Tehran, VOA News reported.
The International Atomic Energy Agency is expected to publish its report on Thursday or Friday.
Diplomatic sources in Vienna say Western countries are pushing the IAEA to release even more intelligence reports that they believe will show Iran's intention to build a nuclear weapon.
Iran says its nuclear research is for generating electricity and other peaceful purposes. It has defied U.N. resolutions to stop enriching uranium, and only recently allowed international inspectors to visit a reactor, after denying them entry for a year.
Western officials are to meet next week to discuss their next response to Iran.
An IAEA report in June said Tehran is using 5,000 centrifuges to enrich uranium.
Diplomats this week said Iran has installed an additional 2,000 centrifuges, although it has not increased the number involved in enrichment.