The source told Iran’s Fars News Agency that Tehran has not yet announced its final position on the proposed agreement, adding that “political, legal, and technical” aspects are still being reviewed.

According to Fars, discussions on the draft framework are continuing at both expert and decision-making levels.

The comments come amid mixed signals over the timing of a potential deal.

US President Donald Trump said on his Truth Social platform on Saturday that an agreement with Iran was scheduled to be signed on Sunday.

Prime Minister Shehbaz Sharif, whose government has been involved in facilitating contacts between Washington and Tehran, also indicated that the deal could be finalised within 24 hours.

However, Iranian officials have said the agreement will not be signed on Sunday, suggesting instead that it could be concluded in the coming days.

The Pakistan-mediated diplomatic process has focused on ending hostilities between the US and Iran, reopening the Strait of Hormuz to maritime traffic, and reaching an understanding on Iran’s nuclear programme.

Iranian officials have previously said that much of the proposed text has already been agreed, while also accusing Washington of slowing progress through shifting positions and inconsistent statements.