Iran announced that it had started producing 60 per cent enriched uranium at the Natanz Enrichment Facility, in parallel to continued enrichment at 20 per cent. A senior Iranian official asserted that “Iranian [nuclear] progress will not be stopped through the assassination of nuclear scientists and damaging nuclear facilities”. The following day, the IAEA confirmed “production of UF6 enriched up to 60 per cent... at the [above-ground] Natanz Pilot Fuel Enrichment Plant”.