VIENNA, May 11: The UN's nuclear watchdog denied on Friday a report that Iran had blocked its inspectors from visiting a nuclear facility where it is enriching uranium.

“There is no truth to media reports claiming that the IAEA was not able to get access to Natanz,” said International Atomic Energy Agency spokesman Marc Vidricaire.

“We have not been denied access at any time, including in the past few weeks. Normally we do not comment on such reports but this time we felt we had to clarify the matter,” he said.

“If we had a problem like that we would have to report to the (35-nation IAEA governing) board ... That has not happened because this alleged event did not take place.”

Iran's ambassador to the IAEA also denied the reports.

Last year, Iran held up some inspection visits to Natanz, but access was eventually restored, diplomats familiar with IAEA operations said at the time.

IAEA inspectors visited the Natanz plant on April 15-16 and again about two weeks later and diplomats familiar with their findings said Iran now has more than 1,600 enrichment centrifuges, divided into 10 fuel-cycle networks, operational.

A diplomat close to the IAEA said he understood there had been one unannounced inspection visit to Natanz since agency officials struck a deal with Iran for such visits in late March.

Iran granted the unannounced visits in exchange for the IAEA setting aside its longstanding demand to install surveillance cameras inside the underground centrifuge hall.

There are cameras only outside the hall now monitoring nuclear materials taken in and taken out.

The IAEA will seek to put cameras inside the hall once Iran is ready to produce enriched uranium in significant quantities, diplomats have said.—Reuters.