WASHINGTON - The blast that punched a hole in a French supertanker off the coast of Yemen on Sunday appears to have occurred within the ship, a senior US State Department official has been quoted as saying. The vessel, carrying 397,000 barrels of crude oil, was set afire by the blast in the Gulf of Aden. 'Indications were that it was an explosion from inside the vessel,' said Mr Richard Boucher, according to CNN. He added that a 'variety' of sources, including French and Yemeni investigators, had drawn that conclusion from the way the vessel looked after the explosion. However,...