Arizona Helicopter Crash Kills Four

A private helicopter crashed in the mountains of United States — Arizona near Telegraph Canyon, killing all four occupants: a 59-year-old pilot and three women aged 21, 21, and 22. The helicopter, an MD 369FF, had departed from Pegasus Airpark in Queen Creek. Authorities, including the United States — Pinal County, Arizona Sheriff's Office, reported that the crash may have occurred when the helicopter struck a recreational slackline over half a mile long, suspended across the mountains. The United States — Federal Aviation Administration and the United States — National Transportation Safety Board have launched a joint investigation into the incident, and temporary flight restrictions were imposed over the area.