DUBAI, Nov 22 (Reuters) - Iran has begun enriching uranium to 60% purity at its underground Fordow nuclear site, the government's nuclear chief said on Tuesday, a move that may irk Western powers pushing Tehran to roll back its nuclear work by reviving a 2015 pact.
"We had said that Iran will seriously react to any resolution and political pressure ... that is why Iran has started enriching uranium to 60% purity from Monday at the Fordow site," said Mohammad Eslami, according to Iranian media.
The semi-official ISNA news agency reported Iran had informed the agency in a letter about the decision to use "IR-6 advanced centrifuges to produce 60% enriched uranium" at Fordow, a site buried inside a mountain.
In June, Reuters reported that Tehran was enhancing its uranium enrichment further by preparing to use IR-6 centrifuges, which can easily switch between enrichment levels, at the Fordow site.
"Iran has also started the process of injecting gas into two cascades of IR-2m and IR-4 advanced centrifuges at the Natanz site," state TV reported.