Calling it “an unattended death” aboard the flight, Massachusetts State Police said someone called the Crime Scene Services Section about the death.

The individual fell ill shortly after the flight departed from Paris-Charles de Gaulle airport on Tuesday, and a doctor onboard was unable to rescue them.

A passenger who died mid-flight on board an Air France flight to Boston on Tuesday fell ill after departing from Paris-Charles de Gaulle airport, the airline said in a statement to NBC Boston. A doctor on board flight AF334 attempted to save the passenger’s life,

Massachusetts State Police are investigating an unattended death that occurred aboard an Air France flight traveling from Paris to Boston.

Air France issued a statement confirming that a customer on the flight was ill, and "despite the assistance of a doctor on board, the customer could not be rescued."