Iran's acting foreign minister Ali Bagheri discussed "proposed solutions" for ending the Gaza war with Hezbollah chief Hassan Nasrallah on Tuesday, the Iran-backed Lebanese militant group said.

The two men "reviewed the latest regional political and security developments, especially on the Gaza and Lebanon fronts, and the proposed solutions," a Hezbollah statement said.

US President Joe Biden outlined a three-stage roadmap towards a full ceasefire on Friday that he said was a new offer from Israel that he urged Hamas to accept.

However, Israeli Prime Minister Benjamin Netanyahu took issue with Biden's presentation of what was on the table, stressing that the war would continue until all of Israel's "goals are achieved".

Netanyahu said that included the destruction of Hamas's capacity to govern Gaza or pose a military threat to Israel.

Bagheri arrived in Lebanon Monday on his first foreign trip since being named caretaker minister following the death of his predecessor Hossein Amir-Abdollahian in a helicopter crash last month that also killed president Ebrahim Raisi.

At a press conference on Monday, Bagheri said the United States should halt all aid to Israel rather than propose a ceasefire.

He said he had chosen Lebanon for his first official visit "because Lebanon is the cradle of resistance" against Israel.

Bagheri was due to hold talks in Damascus later Tuesday with his Syrian counterpart Faisal Mekdad and President Bashar al-Assad.

Iran's Tasnim news agency said Bagheri "talked with the leaders of the Palestinian resistance groups in Syria" at the Iranian embassy in Damascus.