Mottaki is scheduled to attend a meeting of the Organisation of the Islamic Conference (OIC) on Sunday, the official news agency IRNA said.
The OICs executive committee will hold talks on recent developments in the Gaza Strip.
Separately, state media reported that Iran’s Majlis (Parliament) Speaker Gholam-Ali Haddad-Adel arrived in the Sudanese capital Khartoum on Saturday to hold talks on expanding relations between the two states.