Iran was said to have constructed thousands of gas centrifuges required for the enrichment of uranium, a key process in the assembly of nuclear weapons.

The National Council of Resistance of Iran has released the content of an Iranian government document that reported the production of thousands of centrifuges for uranium enrichment. The document said the machines, produced in Isfahan and Teheran, were meant to be operated at secret facilities throughout Iran.

"We were able to assemble thousands of centrifuge machines that could be made operational in different sites across the country," the Iranian opposition group quoted the classified Iranian government document as saying.

The council said it has identified the secret enrichment sites in Iran. But a spokesman said he could not provide additional details.
 
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