"Hamas bureau chief Ismail Haniyeh, during his trip to Tehran on Tuesday, will meet with Iranian Foreign Minister Hossein Amir-Abdollahian," Iran's official IRNA news agency said, adding that he will also meet with other senior officials.

It is the second visit the Hamas leader has made to Tehran since Israel's Gaza war began in October, which has killed at least 32,414 Palestinians, most of them women and children.

Haniyeh's last visit was in early November when he met Iran's supreme leader Ayatollah Ali Khamenei as well as other officials.

Haniyeh's visit comes after a resolution adopted by the UN Security Council on Monday called for an "immediate ceasefire" for the ongoing Muslim holy month of Ramadan, leading to a "lasting" truce.

Iranian foreign ministry spokesman Nasser Kanani described Monday's resolution as a "positive but insufficient step".

He called for "effective measures to implement the resolution and the complete and permanent cessation of attacks".

*This story was edited by Ahram Online