The exchange between the countries is continuing, according to a spokesperson, through Pakistani mediation, despite Iran's view that Washington's demands are excessive.
"As we announced yesterday, our concerns were conveyed to the American side," said Foreign Ministry spokesman Esmail Baghaei at a press conference.
On Sunday, U.S. President Donald Trump wrote on social media that "the clock is ticking" for Iran and that the country must act quickly.
According to an Israeli television channel, dozens of U.S. cargo planes loaded with ammunition from bases in Germany have landed in Tel Aviv in the past 24 hours, Al Jazeera reports, citing the channel Reshet 13.
According to the report, the deliveries are part of U.S. preparations to resume the war against Iran.
