The MT Andrea Victory, another of the allegedly targeted ships, sustained a hole in its hull just above its waterline from "an unknown object", its owner Thome Ship Management said.
In response to this act of sabotage of a major tanker refuelling hub, the head of the Iranian parliament's national security committee tweeted that the incident illustrated the extent to which the southern Persian Gulf's security has recently become fragile.
- During the 1980-1988 Iran-Iraq war, the two sides sought to disrupt each other's oil exports in what was known as the Tanker War.
"This criminal act constitutes a serious threat to the security and safety of maritime navigation and adversely impacts regional and worldwide peace and security", the source added.More news: Suns Guard Josh Jackson Arrested
The scale of the alleged sabotage also remains unclear. This is the latest vessel to be reportedly vandalised in the region. Pipelines owned by the UAE and Saudi Arabia can't carry as much oil as tankers, and while Saudi Arabia and Iran have alternate seaports, their neighbors don't.
The statement did not identify the media outlets that published those reports but the Iranian Press TV website cited a Lebanese broadcaster, Mayadeen, saying seven oil tankers were attacked in the port. Ship-tracking data showed the vessel still anchored off Fujairah, apparently not in immediate distress.
The US Navy's Bahrain-based Fifth Fleet said it was aware of the report when contacted by Reuters, but referred queries to the UAE authorities.
From the coast, AP journalists saw an Emirati coast guard vessel patrolling near the area of one of the Saudi ships in Fujairah, some 130 miles (210 kilometers) northeast of Dubai on the Gulf of Oman.More news: Former US President Jimmy Carter hospitalized after breaking hip, spokesperson says
The head of the IRGC responded to us movement of military assets into the Persian Gulf as "targets". Oil prices rose on world markets on Monday with benchmark Brent North Sea crude up 1.8 per cent at $71.90 a barrel in London. He said "the attack didn't lead to any casualties or oil spill", though he acknowledge it affected "the security of oil supplies to consumers all over the world".
Iran's foreign ministry called the incidents "worrisome and dreadful" and asked for an investigation into the matter. He warned against "foreign seditious plots to upset the region's security and stability".
Saudi Arabia and the UAE are the largest and third-largest producers, respectively, in the Organization of the Petroleum Exporting Countries (OPEC).
But the accusations immediately sparked fears of an escalation between the US, whose Fifth Fleet in Bahrain protects commercial ships in the strait, and Iran, which borders it. Relations between the two countries are already strained due to President Donald Trump's decision to withdraw waivers that had blunted the impact of renewed sanctions on Iran.More news: Lena Headey reflects on Cersei Lannister's arc in 'Game of Thrones'
Alarmingly, the possibility is higher now than ever before that hostility in US-Iran relations will escalate into a military confrontation.