Iranian President Hassan Rouhani speaks during a cabinet meeting in Teheran on April 7, 2021. (PHOTO / AFP)

Iran will continue its talks with world powers over how to revive the 2015 nuclear deal, despite the fact that a key agreement with the United Nations over atomic inspections has passed its deadline.

President Hassan Rouhani said the “US has clearly expressed readiness to lift sanctions under the nuclear deal. We will continue talks until a final agreement,” according to his official website, president.ir.

Rouhani did not comment on Iran’s interim nuclear inspections deal with the International Atomic Energy Agency that expired on Saturday and that diplomats are expecting to be extended before they reconvene for talks in Vienna next week.

Iran began gradually breaching terms of the pact with world powers after then-President Donald Trump withdrew the United States from the deal in 2018 and reimposed sanctions

The head of the IAEA, Rafael Grossi, is to hold a news conference on Sunday afternoon. He is in talks with Iran on extending the monitoring arrangement with Tehran that could affect talks between Tehran and six powers to revive the 2015 nuclear deal, the IAEA said.

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Iran's parliament speaker said on Sunday that IAEA would no longer access images of nuclear sites.

"From May 22 and with the end of the three-month agreement, the agency will have no access to data collected by cameras inside the nuclear facilities agreed under the agreement," state TV quoted Mohammad Baqer Qalibaf as saying.

Iran began gradually breaching terms of the pact with world powers after then-President Donald Trump withdrew the United States from the deal in 2018 and reimposed sanctions.

The pact aims to keep Iran from being able to make nuclear arms, which Tehran says it has never wanted to build.

In February, the watchdog and Iran agreed to keep “necessary” IAEA monitoring and verification activities in the Islamic Republic, although Tehran would reduce cooperation with the agency, including by ending snap inspections.

READ MORE: Iran, IAEA strike deal on nuclear inspectors' access to sites