UN watchdog warns Iran upping rate of uranium enrichment to near weapons-grade levels

This photo released November 5, 2019, by the Atomic Energy Organization of Iran shows centrifuge machines in the Natanz uranium enrichment facility near Natanz, Iran. (Atomic Energy Organization of Iran via AP, File)
This photo released November 5, 2019, by the Atomic Energy Organization of Iran shows centrifuge machines in the Natanz uranium enrichment facility near Natanz, Iran. (Atomic Energy Organization of Iran via AP, File)

VIENNA — Iran has increased the rate at which it is producing near weapons-grade uranium in recent weeks, reversing a previous slowdown that started in the middle of this year, the International Atomic Energy Agency says in a report to member states.

Director General Rafael Mariano Grossi says in the report that Iran “in recent weeks had increased its production of highly enriched uranium, reversing a previous output reduction from mid-2023,” according to an IAEA spokesperson.

Iran had previously slowed down the rate at which it was enriching uranium to 60% purity. Uranium enriched at 60% purity is just a short, technical step away from weapons-grade levels of 90%.

The UN nuclear watchdog says its inspectors have verified the increased rate of production since the end of November at facilities in Natanz and Fordo to about 9 kilograms per month, up from 3 kilograms per month since June and representing a return to earlier levels of production.

Enriching uranium means increasing the percentage of uranium-235, the isotope of uranium that can be used in nuclear fission.

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