Eyewitness accounts describe a scene of panic as individuals attempted to fend off the swarm, with one local resident, Andrée, recalling, "I could tell they were being attacked by something but I couldn't figure out what." Mayor Pierre Mathonier suggested that Asian hornets threatening a beehive might have provoked the incident, yet Christian Carrier, the regional beekeepers' union president, expressed doubt about this explanation. He noted that bees usually do not leave their hives due to the presence of hornets and speculated that the colony's overcrowding and handling by the beekeeper might have led to increased aggression instead.