Diplomatic relations between Lebanon and Iran have entered a new phase with Beirut’s unprecedented withdrawal on Tuesday of its approval of the accreditation of Tehran’s new ambassador Mohammad Reza Sheibani.
The Foreign Ministry said in a statement that it had summoned the Iranian charge d'affaires in Lebanon and informed him of “the Lebanese state's decision to withdraw approval of the accreditation of the appointed Iranian ambassador, Mohammad Reza Sheibani, and declare him persona non grata, demanding that he leave Lebanese territory no later than next Sunday.”
The ministry said it had also summoned Lebanon's ambassador to Iran “in light of what the Lebanese state described as Tehran's violation of diplomatic norms and established practices between the two countries”, after Beirut accused Iran's Revolutionary Guards of commanding Hezbollah's operations in its war against Israel.
The government has accused Hezbollah of dragging Lebanon to war after it fired rockets at Israel on March 2 in wake of the killing of Iran's supreme leader Ali Khamenei at the beginning of the conflict.
Crisis
After three decades of calm, relations between Lebanon and Iran started to grow strained after the 2024 war between Hezbollah and Israel.
Iranian parliament Speaker Mohammad Bagher Ghalibaf declared at the time that Tehran was ready to negotiate with Paris about the implementation of United Nations Security Council resolution 1701 in Lebanon, sparking condemnation from Lebanon.
Then Prime Minister Najib Mikati slammed it as flagrant meddling in Lebanon’s sovereign affairs. He informed the foreign minister at the time to summon Iran’s charge d’affaires to file a formal complaint.
Relations became more strained in 2025 after Ambassador Mojtaba Amani’s suitcases were searched at Beirut’s Rafik Hariri International Airport.
Youssef Raggi, who became Lebanon’s foreign minister in 2025, summoned the Iranian ambassador for the first time since the 1990s last year. In April, he summoned Amani after he posted that the “project to disarm Hezbollah is an obvious conspiracy.”
The Lebanese government had issued a decision on the disarmament of Iran-backed Hezbollah last year.
In December, media close to Hezbollah reported that Raggi had suspended procedures on approving the accreditation of the new Iranian ambassador.
Last week, he summoned the charge d’affaires over statements attributed to the Iranian mission in Beirut and Iranian officials over security and military developments in Lebanon.
Ties between Raggi and Iranian officials have been strained for months. Last year he declined an official invitation from his Iranian counterpart Abbas Araqhchi to visit Tehran, suggesting that they meet in a third neutral country.
The withdrawal of accreditation is rare and it effectively means that a country refuses to welcome a diplomatic representative, reflecting deep political disapproval of the concerned country’s behavior.
The withdrawal was the latest Lebanese measure against Iran.
On March 5, the government took a series of steps that reflect a hardening approach towards Tehran. It imposed visas on visiting Iranians that had been suspended since 2011 in an effort to encourage trade and tourism between Beirut and Tehran.
The government also banned any activity by the Iranian Revolutionary Guards in Lebanon. Dozens of Iranians have since been deported from Lebanon.
‘Correcting’ relations
Lebanon had in the early 1990s launched a phase to “correct” relations with Iran after the end of the Lebanese civil war.
Then Foreign Minister Fares Boueiz was responsible for “reorganizing diplomatic work in line with the Vienna Convection”, said Lebanese sources.
During the 1975-90 civil war, Iranian officials would move freely to Lebanon through Syria and meet with Hezbollah officials in Beirut. Lebanese authorities had opposed the behavior.
In previous statements to Asharq Al-Awsat, Boueiz said Iranian delegations would travel to Lebanon through Syria without coordinating with the state.
The situation was later addressed through official diplomatic channels, he added.
The Iranian ambassador at the time was informed of the authorities’ objection and the stance was relayed to then Iranian FM Ali Akbar Velayati, said Boueiz.
Two days later, the Lebanese Foreign Ministry received an approval to “correct relations”, leading to an exchange in official visits and the signing of agreements that “regulated” the ties.