Britain ordered its navy to escort UK-flagged ships through the Strait of Hormuz after Iranian soldiers seized a tanker in the flashpoint entrance to the Gulf.
“The Royal Navy has been tasked to accompany British-flagged ships through the Strait of Hormuz, either individually or in groups, should sufficient notice be given of their passage,” the British defence ministry said in a statement to AFP.
The week-long standoff over the British-flagged Stena Impero and its 23-member crew has inflamed tensions between the Islamic republic and the United Kingdom.
Britain responded on Monday by proposing a European-led mission that could secure the passage of vessels through the world’s busiest oil shipping lane. But France said on Thursday it was not willing to send extra military assets to the Gulf, but would share information and coordinate its currently deployed assets.
Iran had earlier warned Britain that it intended to retaliate for UK marines’ involvement of the seizure of its own supertanker near Gibraltar on July 4.
Britain currently has the HMS Montrose warship in the Gulf and a handful of smaller naval vessels.
The Montrose had tried to rush in to rescue the Stena but arrived too late to the scene.
Britain has already raised its security level in the region to the highest level and advised all boats in Iranian waters not to enter the strait.