This news release just in from the Portland Police Department:

A 15-year-old Portland High School student was arrested Thursday, June 7th and charged with terrorizing. School administration learned around 7:45 am that the student had threatened sometime earlier to bring a gun to school. They immediately notified the School Resource Officer who found the student in class and removed him around 8:00 am. A search of his backpack revealed a pellet gun resembling a realistic handgun. No specific threats were made to the school, other students, or staff.

The identities of juveniles charged with misdemeanor crimes are not released. 
Anyone with information is asked to call the Portland Police Department at 207-874-8575.