Shell drill ship grounds off Alaska

A large drill ship belonging to oil major Shell ran aground off Alaska on Monday night after drifting in stormy weather, company and government officials said. The ship, the Kulluk, broke away from one of its tow lines on Monday afternoon and was driven to rocks just off Kodiak Island, where it grounded at about 9pm Alaska time, officials said. There is no known spill and no reports of damage yet and a US Coast Guard helicopter overflight detected no visible sheen.