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SPOKANE, Wash. (AP) - A Delta Air Lines flight from Seattle to Atlanta has been diverted to Spokane International Airport after a 16-year-old boy died on board.

Airport spokesman Todd Woodard says the teen suffered some kind of medical emergency on Flight 128 Saturday morning and passed away, reportedly of natural causes.

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Delta spokesman Michael Thomas says there were 258 passengers on the Boeing 767. They exited the aircraft at Spokane. Some were re-booked onto other flights to get to their destinations. Delta flew in another crew Saturday afternoon to fly the remaining passengers to Atlanta.

According to Spokane Assistant Fire Chief Brian Schaeffer the young man had several pre-existing medical conditions.

"Until the autopsy is completed we won't know if those contributed to his death," said Schaeffer.

Schaeffer also said the young man was traveling with his mother, grandmother and a brother. The father is in the Army and the family was in the process of moving back home to the Atlanta area.

"It is my understanding that the four flying today were going ahead to start Christmas vacation with family. Their father was going to join them later in the month," said Schaeffer.