Hariri quit his post on Saturday in a televised speech broadcast by Saudi Arabia's Al-Arabiya television, during which he appeared tense as he carefully read out from a written statement.
He claimed that he feared the same fate as his assassinated father and accused Iran and the Lebanese resistance movement Hezbollah of meddling in Arab countries’ affairs.
Hariri’s departure raised shockwaves through Lebanon that is struggling to maintain stability at a time when much of the Middle East is gripped by the Takfiri violence rooted in Saudi Arabia.
Lebanon’s Minister of Justice Salim Jreissati said the development was "confusing and suspicious in its timing and location as well as the way it was delivered and the content of the resignation."
“The optics are terrible — for Hariri to resign from Riyadh, imagine how his audience [in Lebanon] feels watching that,” said Emile Hokayem, a regional analyst at the Institute for Strategic Studies.
“God protect Lebanon from the evil of Saudi Arabia’s reckless adventures,” Sheikh Nabil Kawouk, a member of Hezbollah’s central committee, told Lebanon’s Al Jadeed television.
Last week, Qatar's former prime minister Hamad bin Jassim revealed how the US coordinated support by Doha, Riyadh and Ankara for terrorists operating against the Syrian government.
Syria has always been a thorn in the side of Israel. The Arab country is part of the "axis of resistance" along with Lebanon's Hezbollah and Iran, which has brought Daesh to the brink of elimination.
The triangle of Saudi Arabia, Israel and the US is alarmed and the prospect of an eventual triumph of this axis which has now become inevitable has prompted them to take drastic measures.
On Friday, as Syria began celebrating the capture of Dayr al-Zawr, Nusra Front terrorists launched a massive assault on a Druze village neighboring the occupied Golan Heights.
According to the Syrian state media, the onslaught was carried out with the Israeli coordination and assistance but Tel Aviv used the occasion to threaten a direct intervention in the war.
Hariri's resignation over what he called Hezbollah's "grip" on Lebanon is the latest drastic step which Saudi Arabia and its allies have taken to tip the scales even at the cost of turning Lebanon into another Syria.