Explainer How much damage have Israeli strikes caused to Iran s nuclear programme

VIENNA - Israel has carried out wide-ranging military strikes on Iran, hitting sites including some of its most important nuclear facilities.

Below is a summary of what is known about the damage inflicted on Irans nuclear programme, incorporating data from the last quarterly report by the U.N. nuclear watchdog on May 31.

OVERVIEW

Iran is enriching uranium to up to 60% purity. This could easily be refined further to the roughly 90% which is weapons grade.

The International Atomic Energy Agency, which inspects Irans nuclear sites including its enrichment plants, says that is of serious concern because no other country has enriched to that level without producing nuclear weapons. Western powers say there is no civil justification for enrichment to that level.

Iran denies seeking nuclear weapons. It points to its right to nuclear technology for peaceful purposes, including enrichment, as a party to the nuclear Non-Proliferation Treaty.

Israel, which is not a party to the NPT, is the only country in the Middle East widely believed to have nuclear weapons. Israel does not deny or confirm that.

HEART OF THE PROGRAMME: URANIUM ENRICHMENT

Iran had three operating uranium enrichment plants when Israel began its attacks:

* The Fuel Enrichment Plant (FEP) at Natanz (power supply hit)

A vast underground facility designed to house 50,0000 centrifuges, the machines that enrich uranium.

There has long been speculation among military experts about whether Israeli airstrikes could destroy the facility given that it is several floors underground.

There are about 17,000 centrifuges installed there, of which around 13,500 were operating at last count, enriching uranium to up to 5%.

Electricity infrastructure at Natanz was destroyed, IAEA chief Rafael Grossi told the U.N. Security Council on Friday, specifically an electrical sub-station, the main electric power supply building, emergency power supply and back-up generators.

While