Days after the United States deployed bombers and an assault ship to bolster an aircraft carrier in the region, the world's largest crude exporter said two pumping stations had been targeted early Tuesday.
The announcement came hours after Yemen's Huthi rebels said they had targeted vital installations in Saudi Arabia, which leads a military coalition against them.
The stations reportedly targeted lie west of Riyadh, at Dawadmi and Afeef.
Falih said Tuesday's incident was an "act of terrorism... that not only targets the kingdom but also the security of oil supplies to the world and the global economy".
The 1,200-kilometre pipeline reportedly hit Tuesday serves as an alternative for Saudi crude exports if the strategically vital Strait of Hormuz at the mouth of the Gulf were to be closed.
The reported pipeline attacks came after the UAE said four ships were damaged in "sabotage attacks" off the emirate of Fujairah, close to the Hormuz, on Sunday.
"If they (Iran) do anything, it would be a very bad mistake," Trump warned at the White House.
The attacks came after the United States deployed the USS Abraham Lincoln carrier group, an amphibious assault vessel, a Patriot missile battery and B-52 bombers, triggering fears of a possible military confrontation.
"In an environment of rising regional tensions, limited Iranian operations against the UAE and Saudi Arabia might be designed to dissuade Abu Dhabi and Riyadh and signal that war with Iran will not be limited to Iranian soil," said Alex Vatanka, senior fellow at the Middle East Institute.
No casualties were reported and none of the vessels sank.
The UAE minister of state for foreign affairs, Anwar Gargash, said the Emirates will probe the "deliberate sabotage".
The Andrea Victory's managers, Thome Group, said the ship's hull had been pierced "after being struck by an unknown object on the waterline".
Asked whether the United States believed Iran played a role in the attacks, Washington's Iran envoy Brian Hook declined to comment, saying only that US authorities would help the investigation at the request of the UAE.
Iran and the United States have engaged in a war of words in recent weeks since Tehran began to roll back commitments set out in a landmark 2015 nuclear deal with world powers.
Trump withdrew the United States from the deal last year and has unilaterally reimposed tough sanctions on Iran.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)