France is sending its own investigators to Argentina to find out what caused a fatal helicopter collision during the filming of a reality TV show.<br /><br /> Argentine civil aviation investigators are already combing the site looking for mobile phones, documents and other charred items.<br /><br /> Witnesses watching from below have described one helicopter moving too close to the other implying human error, but that is as yet speculation.<br /><br /> Ten people died in the incident – rescuers were driven back by the fire which erupted when the aircrafts crashed.<br /><br /> Along with the two Argentine pilots, five members of the television production crew perished. They have been named as : Brice Guilbert, Volodia Guinard,<br />Lucie Mei-Dalby, Laurent Sbasnik and Edouard Gilles. The programme called “Dropped” had run of three seasons.<br /><br /> President Francois Hollande has led tributes to the three French Olympians who also died:<br /><br /> Yachtswoman Florence Arthaud (57), Swimmer Camille Muffar (25) and Boxer Alexis Vastine (28.)<br />Thei
