Washington, SANA-Four killed Wednesday in a medical transport plane crash, northeastern Arizona.

ABC News quoted police in Navajo Nation as saying that a Beechcraft King Air 300 crashed while attempting to land at Chinle Airport. All four individuals on board were killed, including a patient being transported to a hospital in Navajo.

Police stated that the plane belonged to local aviation company “CSI”, based in the Albuquerque area. The cause of the accident remains unknown, with investigations by the Federal Aviation Administration and the National Transportation Safety Board continuing.

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