An investigation is underway in Thonon-les-Bains, France, following threats aimed at the principal and students of Jean-Jacques Rousseau College. The threats surfaced in messages sent to students via Snapchat on Thursday evening, prompting immediate action by local authorities. To ensure the safety of its 800 pupils, a security perimeter was established around the school, and police will maintain a presence throughout the day while the investigation is led by the judicial police.