Karim Sahib, AFP | An Emirati man looks on at the port of Fujairah in the Gulf Emirate, on May 13, 2019.

Two oil tankers were hit in suspected attacks in the Gulf of Oman and the crews have been evacuated, shipping firms and industry sources said on Thursday, a month after a similar incident in which four tankers in the region were struck.

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The Bahrain-based US Navy Fifth Fleet said it was assisting the tankers after receiving distress calls following "reported attacks". The United Kingdom Maritime Trade Operations, part of the Royal Navy, said it was investigating.

The UN Security Council will on Thursday discuss the situation in the Gulf following the suspected attacks, at the request of the United States, diplomats said.

Details of the incident were not immediately clear, but one operator said it suspected its ship had been hit by a torpedo. Another shipping firm said its vessel was on fire in the Gulf of Oman.

Iran’s official news agency IRNA reported that Iran’s navy had rescued 44 crew members from the tankers, and had transferred them to the port of Jask.

Oil prices surged by 4 percent after the report that has stoked tensions in the region that have already been heightened by attacks last month on Gulf oil assets amid a dispute between Iran and the United States over Tehran's nuclear programme.

The Gulf of Oman lies at the entrance to the Strait of Hormuz, a major strategic waterway through which a fifth of global oil consumption passes from Middle East producers.

'A risk to oil supplies and regional security'

There was no immediate confirmation from authorities in Oman or the United Arab Emirates, in whose territorial waters four tankers were hit last month. An investigation said limpet mines were used. US and Saudi officials blamed Iran for the May attack, a charge Tehran has denied.

Saudi Arabia and the UAE have said the attacks on oil assets in the Gulf posed a risk to global oil supplies and regional security.

On Thursday Bernhard Schulte Shipmanagement said tanker Kokuka Courageous was damaged in a "suspected attack" that breached the hull above the water line while on passage from Saudi Arabia to Singapore.

"The ship is safely afloat," it said in a statement.

Taiwan's CPC said tanker Front Altair, carrying 75,000 tonnes of naptha, was "suspected of being hit by a torpedo" around 0400 GMT. Refinitiv Eikon ship tracking data showed the Front Altair, an Aframax vessel owned by Norway's Frontline, had loaded naphtha, a petrochemical feedstock, and was in waters between Oman and Iran, carrying its cargo from Ruwais in the UAE to Taiwan.

Frontline said its vessel was on fire in the Gulf of Oman.

The sources said crews from both vessels, which they had said had been struck in international waters, had been safely evacuated.

One shipping broker said there had been an explosion "suspected from an outside attack" that may have involved a magnetic mine on the Kokuka.

"All crew safely abandoned the vessel and were picked up by Vessel Coastal Ace. Kokuka Courageous is adrift without any crew on board,” the source said.

Another source said the Front Altair reported a fire caused by a "surface attack" and that the crew had been picked up by nearby vessel Hyundai Dubai.

(FRANCE 24 with REUTERS, AFP)

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