Perham schools received a terroristic threat on a middle school answering machine Tuesday morning, prompting school officials to carry on with a lockdown already in place.
The lockdown was initially put in place in response to the death of a 16-year-old student, who died of a gunshot wound Monday evening at a home near Amor.
Superintendent Tamara Uselman said she received word of the threatening voicemail late Tuesday morning - after the lockdown was already in place - and contacted the Perham Police Department.
The voicemail included profanity and threats that someone would show up on campus, Uselman said.
The two incidents are not related, she said.