A bomb threat emailed to a Gilbert school on Monday was a hoax, police said.
The threat was directed at Gilbert Classical Academy, an alternative junior high and high school in the Gilbert Public Schools District.
"The investigation into the specific origin of the threat is ongoing," Gilbert police Lt. John Lyle said in a statement.
The contents of the email were not released.
Lyle said the police department will beef up presence around the school throughout the night and again on Tuesday.
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