Montezuma-Cortez High School in Colorado was placed on lockdown recently due to a threat. The lockdown was initiated after law enforcement received a call indicating a potential threat directed at the high school. The situation was handled by local authorities, and the lockdown was lifted after ensuring the safety of students and staff.
Sources:
https://kyma.com/news/local-news/2024/09/16/two-local-schools-canceled-due-to-school-threats/