UPDATE: Shell plans to use three tugs to tow the damaged Kulluk oil rig to Dutch Harbor in Alaska's Aleutian Islands, where it will await a longer trip to an unnamed Asian drydock. Shell and the US Coast Guard have disbanded the joint command formed after the Seattle-bound rig broke free from its sole tugboat, then ran aground. Officials said the Kulluk's outer hull was damaged but not breached. They did not specify the degree of damage, saying only, "The outer hull did receive damage as expected with a vessel being aground during adverse weather."