Shell: Alaska drillship didn't run aground ANCHORAGE, Alaska, July 20 (UPI) -- Divers from Shell confirmed that the Noble Discoverer drillship didn't run aground after it slipped its anchor off the Alaskan coast, the company said. Shell said the drillship slipped anchor and drifted about 300 feet toward the Alaskan coast. It was towed to its original position this week. There were no injuries or pollution reported from the incident. "While an internal investigation will determine why the Discoverer slipped anchor, we are pleased with the speed and effectiveness of the mitigation measures we had in place," the company said in a statement. The company said it was committed to "flawless operations" in the area, adding "even a near miss is unacceptable."