
Iran's new workshop at Natanz for making parts for centrifuges, machines that enrich uranium, has been set up underground, UN nuclear watchdog chief Rafael Grossi said on Thursday, a move apparently aimed at protecting it from possible attacks.
The workshop uses machines from a now-closed facility at Karaj that suffered what Tehran says was a sabotage attack by its arch-foe Israel. The workshop can make parts essential to advanced centrifuges that are among the most efficient in Iran's enrichment program.