The official said some of the countries invited to the talks at the foreign ministers' level included Pakistan, Saudi Arabia, Qatar, Egypt, Oman, and the United Arab Emirates.
US President Donald Trump vowed to use force if Tehran ignored his demands and announced an “armada” heading toward Iran.
Egypt, sharing a 1,200 km border with Sudan, has strongly backed Sudan’s military in its nearly three-year conflict with the RSF paramilitary group.
The document outlines how officials affiliated with Hamas must act before the establishment of the National Committee for the Administration of Gaza (NCAG).
"People are extremely angry," a former official said, adding a US attack could lead Iranians to rise up again. "The wall of fear has collapsed. There is no fear left."
While reports indicate a member of the Syrian Arab Army was arrested for butchering the braid off a murdered female SDF fighter, Kurds say they are still waiting for the violence to be acknowledged
Ayatollah Ali Khamenei said Iranian protesters carried out acts similar to Islamic State and blamed the US for creating the group.
Syrian Interior Ministry forces entered Hasakah on Monday under a deal with the US-backed SDF, marking a key test of coordination after weeks of clashes.
Israel fully reopened the border crossing between Gaza and Egypt on Monday for people on foot, a day after rolling out a limited, one-day pilot on Sunday to address potential logistical issues.
The UAE issued a blunt denial of reports it would take over Gaza’s civilian administration following a Channel 12 report.
A meeting between US and Iranian officials in Istanbul is seen as a best-case scenario, sources familiar with the plans said.