Fire at Iran's Natanz nuclear facility caused significant damage
Iranian officials say incident could slow down the country's development and production of advanced centrifuges.
Israel says 'not necessarily' behind Iran nuclear site incidentIsrael's defence minister said on Sunday it is not "necessarily" behind every mysterious incident in Iran, after a fire at the Natanz nuclear site prompted some Iranian officials to say it was the result of cyber sabotage. Emer McCarthy reports.