UPPER MORELAND, Pennsylvania (WPVI) -- The Upper Moreland School District is closed on Monday after a voicemail threatened serious violence against the district.
District officials sent a letter out, advising that schools will be closed on Monday.
"With a focus on student and staff safety and out of an abundance of caution, all schools and offices will be closed today," the district said.
Officials said a threatening voicemail was left on the transportation department's phone line over the weekend. The threat did not specify a specific school.
The Upper Moreland Police Department was immediately notified and the incident is under investigation.