The online meeting is being held to discuss the situation in occupied Quds and Gaza, at the request of Saudi Arabia.
The meeting between foreign ministers of OIC member nations addressed continuing Israeli regime's attacks in the Palestinian territories, which have escalated since last Monday.
Zarif arrived in Rome to meet with Italian and Vatican officials to discuss the expansion of bilateral relations on Sunday morning.
He has previously traveled to Spain to meet with the country's foreign and industry ministers.
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