Lebanese Prime Minister Saad al-Hariri has announced his resignation in a televised broadcast from Saudi Arabia.
Saad al-Hariri also said he feared for his life while harshly criticizing Iran.
He accused Iran of sowing “fear and destruction” in several countries, including Lebanon.
Saad al-Hariri’s father, former Prime Minister Rafik al-Hariri, was assassinated in 2005.
The Hariri family is close to Saudi Arabia, Iran’s regional competitor.
Saad al-Hariri has been prime minister since December 2016, after previously holding the post from 2009 to 2011.
“We live in a climate similar to the atmosphere that prevailed before the assassination of the martyr Rafik al-Hariri,” he said on air from Riyadh.
“I felt like I was secretly preparing for my life.”
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Saad al-Hariri also attacked the Shiite movement Hezbollah, supported by Iran, which has considerable power in Lebanon.
Addressing “Iran and its followers,” the prime minister said Lebanon “would cut off the hands that ungodly continue in it.”
Iran said the resignation would create regional tensions and dismissed Saad al-Hariri’s accusations as “baseless.”
In recent days, Saad al-Hariri has visited Saudi Arabia several times, whose leadership is categorically against Iran.
He made the announcement the day after a meeting in Beirut with Ali Akbar Velayati, an adviser to Iran’s Supreme Leader Ayatollah Ali Kahmenei.
As prime minister in 2016, Saad al-Hariri promised a “new era for Lebanon” after two years of political stalemate.
The coalition government, led by Saad al-Hariri, has united almost all major political parties in Lebanon, including Hezbollah.
His father, Rafik al-Hariri, was killed by a bomb in 2005 in a terrorist attack widely blamed on Hezbollah.