article_snippet: (CNN)One of 10 people killed in the collision of two helicopters in Argentina, France's Florence Arthaud has been described as a "national treasure" by fellow sailor Shirley Robertson.
article_snippet: Along with Camille Muffat and Alexis Vastine, France's Florence Arthaud was one of three sports stars killed in the collision as two helicopters transported the athletes to a gorge in northwestern Argentina to film the reality TV show "Dropped" for French broadcaster TF1.
article_snippet: The nation will mourn this heroine's loss.
article_snippet: Boxer Vastine, 28, and swimmer Camille Muffat, 25,  were also killed in the crash.
article_snippet: Top French athletes among 10 dead after 2 helicopters collide in Argentina .
highlights_snippet: Florence Arthaud was one of 10 people killed in helicopter crash .
  
highlights_snippet: Olympic athletes Camille Muffat and Alexis Vastine were also killed in helicopter crash .