Iranian Foreign Ministry spokesman Saeed Khatibzadeh said, "His country welcomes any efforts for cooperation and dialogue in the region without the participation of foreign parties."
And he added - in a press conference - that Iran's hand is extended to the dialogue with Saudi Arabia if it retreats from its previous measures and stops the Yemen war, as he put it.
Khatibzadeh stressed that his country is waiting for practical action from Washington regarding the nuclear agreement, stressing that returning to the agreement requires lifting all sanctions on his country.
He added, "The return of the United States to the nuclear agreement will not be easy to withdraw from it. They left the agreement with one signature, but they cannot return with a similar signature."
Last Saturday, Iran confirmed its refusal to return to negotiations over its nuclear program, calling on Washington and Western capitals to respect the existing agreement, and at the same time escalated its rhetoric against France, which demanded the participation of Saudi Arabia in the talks.
Israel and Arab and Western powers are calling for a new renegotiation of the Iranian nuclear program, and for the inclusion of new parties in the talks and their expansion to include Tehran's missile program.
Earlier, Saudi Arabia and the United Arab Emirates said that the Arab Gulf states should, this time, participate in any talks.
Saudi Arabia demanded that the negotiations address the Iranian ballistic missile program and "Tehran's support for proxies throughout the Middle East."
This comes at a time when Iran and the United States continue to demand each other to return first to the obligations of the nuclear deal.
The US Secretary of State - Anthony Blinken - had called on Iran to return to commitment to its nuclear agreement with world powers before Washington did.
Blinken said that if Iran returned to abiding by the agreement, Washington would seek to build a "longer and stronger agreement" that would address other "very difficult" issues.
In 2018, the administration of former US President Donald Trump unilaterally withdrew from the nuclear agreement, which was aimed at preventing Tehran from obtaining a nuclear arsenal in exchange for providing economic benefits to it, and Iran responded by reducing its obligations stipulated in the agreement.