On Friday, Iran agreed to hold a fourth round of nuclear talks with the US on Sunday in Oman.
Irani Foreign Minister Abbas Araqchi announced the news, adding that the negotiations were advancing.
"The negotiations are moving forward, and naturally, the further we go, the more consultations and reviews are needed," Araqchi said in remarks cited by Iranian state media.
"The delegations require more time to examine the issues that are raised. But what is important is that we are on a forward-moving path and gradually entering into the details."
The fourth round of indirect negotiations, scheduled for May 3 in Rome, was postponed, with mediator Oman citing "logistical reasons".
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