Transcript for 3 middle schoolers allegedly plotted school attack: Police
Next to an alleged plot to attack a middle school in upstate New York. Authorities say they stopped a credible threat by three students to kill students and teachers. Here's Diane Macedo. Reporter: Tonight, three middle schoolers are facing criminal charges in upstate New York after police say they plotted an attack on their own school. The plan was to enter the middle school with explosives and incendiary devices and firearms to kill and injure students and staff. Reporter: Police say it started as a reported threat from one student to another at albion middle school near Rochester. They immediately launched a full investigation. Reporter: Numerous searches were conducted and several legally possessed firearms and electronic evidence and other supporting materials were seized. Reporter: Investigators tonight say they're thankful someone spoke up. Because of the initial report of a threat to a student, lives were saved and this tragedy was averted. Reporter: Those students, all under 16, are charged with conspiracy. Authorities are telling the community there the school is safe. David? Diane, thank you.
This transcript has been automatically generated and may not be 100% accurate.