Around the country, communities are being battered by a wave of school shooting threats, sparking emergency notifications, urgent group chats and heightened fears among parents that their child’s school could be the next Parkland or Sandy Hook or Uvalde — or any other town hit by mass shootings.

A 15-year-old boy was arrested late Thursday after a friend tipped off police about his threats “to become a school shooter,” the Sanford Police Department announced. Police officers arrested the teen for intimidating written/electronic threat of a mass shooting,