Tinicum Township Police and the Delaware County Medical Examiner responded to Philadelphia International Airport after a report of a person who died on a flight from Paris.
The deceased passenger was on a Delta flight to Philadelphia International Airport that arrived just after 4 p.m., said PHL spokeswoman Mary Flannery.
The 8-hour flight originated out of Charles de Gaulle/Roissy airport.
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Officials said they do not believe the death is suspicious.