Two helicopters collided and crashed during the filming of a reality-TV show in Argentina on Monday, killing 10 people including French Olympic swimmer Camille Muffat and boxer Alexis Vastine. Sailor Florence Arthaud, the helicopters’ two pilots, and members of the ALP TV production team filming the adventure show Dropped were among those killed in the western province of La Rioja. “There were no survivors, according to the information we have,” said La Rioja security chief Cesar Angulo. The crash occured just moments after takeoff amid reports of good weather conditions, according to Argentina’s state news agency Telam. “The sudden death of our fellow French nationals is a cause of immense sadness,” French President François Hollande said in a statement.