Iranian President Ebrahim Raisi will travel to Saudi Arabia on Sunday, the first such visit since Tehran and Riyadh agreed to revive diplomatic ties in March.
"President Raisi will attend the Organization of Islamic Cooperation' (OIC) summit in Riyadh, where the issue of Palestine will be discussed," Etemadonline news website in Tehran reported.
World and regional powers have failed to reach any consensus on how to deal with the escalating conflict in the four weeks since fighters from Hamas militants stormed southern Israel on October 7, killing some 1,400 Israelis, mainly civilians, and taking more than 240 people hostage.
The Iranian regime, which has provided financial and military support to Hamas over the years, immediately celebrated the terror attack, but has avoided direct involvement.
Israel has since struck Hamas-controlled Gaza from the air, imposed a siege and launched a ground assault, stirring global alarm over humanitarian conditions in the enclave. At least 10,022 Palestinians, including 4,104 children, have been killed so far in Israeli strikes on Gaza since Oct. 7, the Gaza health ministry said on Monday.
Regional rivals Tehran and Riyadh agreed to resume ties in March under a deal negotiated by China after seven years of hostility, which had threatened stability and security in the Gulf and helped fuel conflicts in the Middle East from Yemen to Syria.