The two vans were found abandoned. No one was injured. The drivers of the two vans were left at the scene unharmed. The national police force is using aircraft to hunt for the robbers. Many similar robberies occurred in France in the last years. The most spectacular took place in 2013, at the Cannes Film Festival, when a gunman walked into a jewel show at the Carlton International Hotel, stole $136 million in loot, and disappeared down a side street. Then, two armed men made off with a haul of luxury watches on the same promenade.. It seems attackers developed a success technique. However, last month, eight people were convicted in connection with one of the most spectacular jewel thefts in recent French history at a Harry Winston boutique in Paris, in 2008.