11 people seriously injured amid turbulence on Hawaii flightHONOLULU (AP) — Severe turbulence rocked a flight from Phoenix to Honolulu Sunday, seriously injuring 11 people in what an Hawaiian Airlines official called an isolated and unusual event.Jim Ireland, director of Honolulu Emergency Medical Services, said 20 people were taken to hospitals, including 11 people deemed to be in serious condition.Passenger Kaylee Reyes told Hawaii News Now that her mother had just sat down when the turbulence hit and did not have a chance to buckle her safety belt.He didn’t know how much altitude the plane lost during the turbulence, saying that would be part of an investigation involving the National Transportation Safety Board.The investigation will examine what other measures were taken, aside from turning on the fasten seatbelt sign, to ensure passengers were buckled in, he said."