Newburyport High School was put on lock down Tuesday morning following a threatening email sent to administrators, police said.
The lockdown began at 9 a.m. and was lifted shortly after, though authorities said they will investigate the anonymous threat.
The email, received by a school administrator, made unspecific threats against faculty, staff, and students in the high school. The high school went into lockdown mode immediately, and police were called.
According to a Newpburyport Police Department spokesman, officers scoured the school with K-9 units. The building was determined to be safe, and classes resumed while police continued their investigation.
Police do not believe that those inside were in any danger, however one student, a 16-year-old boy, was arrested after police, searching the building responding to the threat, found a butterfly knife with his property. His name will not be released because of his age, police said.
Police do not believe the boy is connected to the email threat.
"I want to thank our neighboring communities and the State Police for providing such a tremendous mutual aid response to Newburyport today," City Marshal Thomas H. Howardsaid. "This was an efficient, measured action by police, responding to a threat. What is important is that our children are safe, and no one was hurt today."
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