One person was killed and two others were injured after a boating accident on the Colorado River inside the Grand Canyon. National Park officials say they received a call at around 11 a.m. Monday about the accident near Kwagunt Rapid at river mile 56. A commercial river trip requested help with an overturned motorboat with injuries. Due to adverse weather conditions, the park helicopter wasn’t able to respond immediately. Two swiftwater rescue crews arrived on the scene early Tuesday morning. A 60-year-old female was pronounced dead at the scene. The park helicopter was able to airlift the two injured people and the woman’s body out of the area. An investigation into the incident is being conducted by the National Park Service, along with the Coconino County Medical Examiner’s Office.