The modification was discovered during an unannounced inspection on Jan. 21 at the Fordow Fuel Enrichment Plant (FFEP), a location built into a mountain where inspectors are beefing up checks after Iran said it would drastically increase enrichment.
In a confidential report to member states obtained by Reuters, the IAEA stated that “they were interconnected in a way that was substantially different from the mode of operation declared by Iran.”
It was unclear exactly where the 84 per cent enriched uranium was found.
The IAEA is currently preparing its quarterly Iran safeguards report ahead of a March 6 Board of Governors meeting in Vienna.
IAEA Director General Rafael Mariano Grossi last month called the moribund 2015 nuclear deal between Iran and world powers an “empty shell,” and said Tehran has sufficient nuclear material for several atomic bombs if it is enriched to weapons-grade levels.IAEA inspectors find uranium enriched to 84 per cent purity in Iran