<span style="color: #222222;">Iran's Revolutionary Guards Corps, IRGC has captured a foreign oil tanker in the Persian Gulf which it claims was smuggling fuel to some Arab states. <br />''<br />''Fars news quoted IRGC commander Ramezan Zirahi who carried out the seizures, as saying that the ship was carrying 700,000 litres of fuel when it was seized close to the barren Farsi island on Wednesday.<br />'' <br />'' Iran's news agency IRNA said that 7 crew on board were detained. Meanwhile, no further details on the ship or the nationalities of the crew were given.<br />'' <br />''The seizure of the latest vessel is the third by Iran in less than a month in Gulf waters, a conduit for much of the world's crude oil.<br />''<br />'' Tensions between Washington, Iran and its neighbours have hit new highs in recent months after the Islamic Republic threatened to block the Strait of Hormuz, a key oil transportation route out of the Gulf.</span>