Sanctions tightened further when major supertanker companies said they would stop loading Iranian cargo. The "Exxon Valdez" supertanker was towed to San Diego, arriving on July 10. It is not a practical solution for a large vessel such as a supertanker. The previous largest ship, the supertanker "Seawise Giant", was dismantled in 2010. In 1967, the supertanker "Torrey Canyon" leaked oil onto the English coastline. The danger of supertanker accidents also increased in the heavily trafficked strait. In 2002, an al-Qaeda attack damaged a French supertanker in the Gulf of Aden. Berge Emperor was a supertanker built in 1975, in Japan, by Mitsui. On 24 July 1987, the supertanker "SS" Bridgeton was mined by Iran near Farsi Island. The supertanker dropped one anchor, but the flukes broke off. At this point the supertanker was drifting at toward the Portsall Rocks. She was the second Batillus class supertanker. He is qualified to navigate a supertanker. Over - currently only used for the B747 Supertanker. The supertanker Seawise Giant, scrapped in 2010, was in length and wide.