Reuters:

PARIS/VIENNA, July 1 (Reuters) – Iran has been restricting U.N. nuclear inspectors’ access to its main uranium enrichment plant at Natanz, citing security concerns after what it says was an attack on the site by Israel in April, diplomats say.

The standoff, which one official said has been going on for weeks, is in the course of being resolved, diplomats said, but it has also raised tensions with the West just as indirect talks between Iran and the United States on reviving the Iran nuclear deal have adjourned without a date set for their resumption.

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https://www.reuters.com/world/middle-east/exclusive-iran-restricts-iaea-access-main-enrichment-plant-after-attack-2021-07-01/