A small medical transport plane crashed and caught fire Tuesday on the Navajo Nation in northern Arizona, killing four people, the tribe said in a statement.

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A small medical transport plane crashed and caught fire on the Navajo Nation in northern Arizona, killing four people

The crash Tuesday of a CSI Aviation company flight from Albuquerque, New Mexico, occurred near the airport in Chinle, about 300 miles northeast of Phoenix

Two pilots and two medical personnel were on their way to a hospital to pick up a patient who needed critical care

The tribe says the cause of the crash is unknown

A Beechcraft King Air 300 from the CSI Aviation company left Albuquerque, New Mexico, with two pilots and two health care providers, according to the Federal Aviation Administra

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