The Hannibal School District introduced its latest weapon in the fight against bullying Wednesday.

School officials say that the district has signed up for a mobile app known as BullyBox, which will allow students to report bullying and other school safety concerns, and do it anonymously.

The adoption of the BullyBox app is the result of discussion with district personnel, student and law enforcement.

When a student reports a problem through BullyBox, notifications are sent to school administrators and Hannibal Police.

For now, the app is available only to Hannibal High School students, but middle and elementary students are expected to be added in the next year.