An Iranian oil tanker was hit by two missiles in a "terrorist act" as it sailed through the Red Sea near Saudi Arabia, Tehran claims

Two separate explosions led to an oil spill and fire on board the heavily-damaged ship owned by the National Iranian Oil Company (NIOC), it was reported.

The state-owned NIOC claims the blasts were caused by a rocket attack at about 5am local time on Friday morning.

The vessel, named Sabiti, was reportedly en route to Syria - via the Suez Canal and the Mediterranean - with a million barrels of oil.

The supertanker held a position about 60 miles south-west of Jeddah in Saudi Arabia for hours after the alleged incident before announcing it was returning to a port in Iran.

Reports out of Iran claim oil was spilling into the sea after two main tanks were damaged in blasts at 5am and 5.20am, but the ship had been "stabilised" by its crew.

The reports did not cite any evidence to support the claim that it was a missile or terror attack and they did not assign any blame.

Foreign Ministry spokesman Abbas Mousavi told state TV: "Those behind the attack are responsible for the consequences of this dangerous adventure, including the dangerous environmental pollution caused."

A report by state TV, quoting the NIOC, added: "Two missiles hit the Iran-owned ship near the Jeddah port city of Saudi Arabia."

Iran's semi-official Fars news agency said "technical experts" suspected "terrorist activity".

All of the crew members were safe and uninjured, said reports out of Iran.

The vessel was carrying a million barrels of oil bound for Syria, Tanker Trackers reported.

The price of oil increased by about two per cent after the incident was reported.

Guy Platten, Secretary General of the International Chamber of Shipping, said: "We are watching the news closely but are relieved that early reports indicate that the crew are safe and there are no injuries.

"The safety of seafarers is of paramount importance."

The ship was the third Iranian tanker to become incapacitated in the Red Sea in just six months.

In May, the Happiness 1 tanker, carrying at least 1.1 million barrels of fuel oil, was forced to seek repairs at a Saudi port after suffering “engine failure and loss of control”.

In August, a vessel called HELM broke down 75 miles from Saudi Arabia.

Late last month, Tehran released a British-flagged tanker two months after it was boarded and seized by the Revolutionary Guard.

The Stena Impero was seized in the Strait of Hormuz - a major oil shipping route - in July for alleged marine violations two weeks after Britain seized an Iranian tanker off the territory of Gibraltar for a suspected breach of European Union sanctions.

Gibraltar released the Adrian Darya 1 - formerly named Grace 1 - in August after Tehran gave assurances that its 2.1 million barrels of oil would not be offloaded in Syria.

Britain claimed the cargo was later sold to Syria, but Iran claimed it was sold to a private company and denied that it had broken assurances.

Iran's seizure of the Stena Impero had ratcheted up tensions in the region following attacks in May and June on other merchant vessels in Gulf waters which Washington blamed on Tehran.

Iran release video of troops boarding British flagged oil taker

Iran has denied responsibility.

Relations between the United States and Iran have become more strained since Washington withdrew last year from a global pact to rein in Tehran's nuclear programme and imposed sanctions on the country aimed at shutting down Iranian oil exports.

Earlier this month, 11 supertankers were waiting to load oil cargoes from Saudi Arabian ports after an attack on the country’s oil facilities halved the kingdom’s production.

The attack on Saudi Arabia that shut 5 per cent of global crude output triggered the biggest surge in oil prices since 1991.

Show more

The Iran-aligned Houthi movement that controls Yemen’s capital claimed responsibility for the attack, which damaged the world’s biggest crude oil processing plant.

Iran denied blame and said it was ready for “full-fledged war”, while US President Donald Trump said Washington was “locked and loaded” to retaliate.