Police determined a threat of a school shooting targeting McDevitt Middle School in Waltham was “non-credible” and came from a student living in the city.

Police and school administrators are planning to have extra security and prohibit backpacks at a Massachusetts middle school on Monday in response to several threats posted on Snapchat.

There was an increased police presence Monday at a middle school in Waltham, Massachusetts, following online threats of a potential school shooting. Waltham Public Schools Superintendent Marisa Mendonsa confirmed Sunday that administrators were made aware of multiple threats that were made via Snapchat regarding a potential shooting at McDevitt Middle School.

Police will be assigned to each floor and “every corner” of a school building after threats of a shooting surfaced on social media, officials say.

A western Massachusetts high school football game was also held without fans due to a shooting threat this weekend. The post Waltham school temporarily bans backpacks, increases police presence after online shooting threat appeared first on Boston.

Backpacks will be prohibited and extra police will be present at McDevitt Middle School in Waltham on Monday following an online threat.

A 12-year-old was found responsible for making a threat on social media to Strong Middle School in Durham Friday, according to police.