Iran has begun installing next-generation equipment at one of its main nuclear plants, a new UN atomic agency report said, five days before talks with world powers.
One official said that Iran intended to install around 3,000 of the new centrifuges at Natanz -- where around 12 thousand 500 of the older models are installed -- enabling it to speed up the enrichment of uranium.
This process is at the heart of the international community's concerns about Iran's nuclear programme, since enriched uranium -- at high levels -- can be used in a nuclear weapon.
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