PARIS (REUTERS) - French billionaire Olivier Dassault was killed on Sunday (March 7) in a helicopter crash, a police source said, with President Emmanuel Macron paying tribute to the 69-year old conservative politician.

Dassault was the eldest son oflate French billionaire industrialist Serge Dassault,whose namesake Dassault Aviation, builds the Rafale war planes and owns Le Figaro newspaper.