A threat drew police to Bangor International Airport on Sunday night.
The threat was made about 10:43 p.m., but after an investigation, police determined it was unsubstantiated, according to Sgt. Jeremy Brock, a spokesperson for the Bangor Police Department.
At 11:53 p.m., the airport reopened the terminal.
The investigation is ongoing, and Brock said no additional information is being made public right now.