Cops probe threat of explosion at school

Pennsylvania State Police are investigating a threat of an explosion at a school.

Police said someone called the Montgomery County 911 center at about 7:15 a.m. today to say there would an explosion at an unidentified school.

Authorities believe the call came from a student at a Perkiomen Valley School District middle school.

Further details weren't immediately available, and police are continuing to investigate the threat.

Contact Emily Babay at 215-854-2153 or Follow @emilybabay on Twitter.

Contact the Breaking News Desk at 215-854-2443 or Follow @phillynews on Twitter.