File photo : Secretary of Iran's Supreme National Security Council Ali Larijani .AP
Ali Larijani's trip to Lebanon comes after Iran expressed opposition to a government plan to disarm Hezbollah, which before a war with Israel last year was believed to be better armed than the Lebanese military.
"If... the Lebanese people are suffering, we in Iran will also feel this pain and we will stand by the dear people of Lebanon in all circumstances," Larijani, the head of the National Security Council, told reporters after landing in Beirut.
Dozens of Hezbollah supporters gathered along the airport road to welcome Larijani. He briefly stepped out of his car to greet them as they chanted slogans of support.
In Lebanon, Larijani is scheduled to meet President Joseph Aoun and Prime Minister Nawaf Salam, as well as parliament speaker Nabih Berri, who is close to Hezbollah.
Iran has suffered a series of blows in its long-running rivalry with Israel, including during 12 days of open war between the two countries in June.
Hezbollah's grip on power has slipped since a war with Israel ended in a November 2024 ceasefire and the new Lebanese government, backed by the United States, has moved to further restrain it.
Iran has declared its firm opposition to the Lebanese government's bid to disarm Hezbollah, while the movement itself has slammed the decision as a "grave sin".
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