Bangor Christian, Hampden Academy, and John Bapst High School were all closed Wednesday after they received similar bomb threats in the mail.
The author said the bombs would go off Wednesday afternoon: fortunately that didn’t happen.
In Hampden, some students gathered across the street from the school at around the time the explosion was supposed to happen.
They say the district made the right decision by canceling classes for the day.
Authorities are asking anyone with information about the case to call Bangor PD at 947-7384.
Hampden Police can be reached at 862-4000.