Today, Monday, the Iranian Foreign Ministry confirmed that negotiations to revive the nuclear agreement will continue "until a good, strong and stable agreement is reached."

"The government is committed to the negotiation process as a serious option," Iranian Foreign Ministry spokesman Nasser Kanaani said in a press conference today, "It will not engage in emotional and hasty negotiations."

He stressed that "the basic policy of Ibrahim Raisi's government is based on the principle not to link the economy and people's livelihood to negotiations," adding that "talks and an exchange of messages are continuing through the mediation of Josep Borrell," the European Union's foreign policy commissioner.

Regarding Tehran's complex relationship with the International Atomic Energy Agency, Kanaani said, "Iran has always cooperated with the agency in an interactive and constructive manner, and has allowed inspections by agency inspectors" of Iran's nuclear facilities.

"Iran is a member of the International Atomic Energy Agency and the Treaty on the Non-Proliferation of Nuclear Weapons," the spokesperson explained. 

However, he considered that IAEA Secretary-General Rafael Grossi "adopted an unprofessional and unfair approach to Iran's nuclear program, especially in recent months," adding: "Grossi's views are not useful and constructive."

Kanaani asked Grossi "to observe the principle of impartiality and fairness" and demanded him "to avoid placing obstacles on the path of negotiations and lifting sanctions" on Iran.

Grossi had said in a newspaper interview last week that Iran's nuclear program was "advancing rapidly" and that the agency's ability to monitor what was going on there was very limited.

In recent strife, the IAEA accused Tehran of meddling in the organization's efforts to scrutinize Iran's nuclear activities, citing the removal of CCTV cameras. Last June, Iran began removing all IAEA surveillance equipment and cameras placed under the 2015 nuclear deal with world powers.

Grossi said last week: "The bottom line is that for about five weeks I've had very limited ability to monitor while the nuclear program is rapidly advancing. So if a deal is made, it will be very difficult for me to put things back in place with all the that period of forced blindness."

Since the Trump administration's unilateral withdrawal from the nuclear agreement in 2018, Iran has gradually detracted from its obligations and increased uranium enrichment to weapons-grade levels.