Frontline has said it is yet to know the cause of the explosion and fire that engulfed its tanker Front Altair this morning in the Gulf of Oman.

Frontline Management chief executive Robert Hvide Macleod told TradeWinds the company was helping authorities control the situation which has been called an attack.

"We don’t know the reason for the explosion and [we] work to clarify through thorough investigations,” he said

“We are now co-operating with authorities and salvage experts to handle the situation in the best possible way," he added.

Macleod says there is no leakage after the attack.

"But most important that none of our crew was hurt in the attack. They were brought onboard an Iranian navy ship and taken ashore" he added.

He denies the Frontline tanker has sunk and that it can be towed.

Hvide Macleod praised the action of the ship's captain who quickly made the decision to evacuate the ship.

"We are very glad to hear that the whole crew was unhurt in the incident," he said.

"All onboard have from what we know handled a demanding situation in according with the routines.”

The 110,000-dwt LR2 Front Altair (built 2016) is carrying naphtha to Japan.

Sources close to the site told TradeWinds the Frontline ship has been abandoned and all crew had been safely picked up by the nearest vessel, the 30,100-dwt cargoship Hyundai Dubai (built 2011).