LATHROP, Mo. — Administrators at the Lathrop School District say that a message scrawled on the boys’ bathroom wall Thursday prompted an investigation by school officials and law enforcement.

According to Superintendent Chris Fine, a student reported that a message expressing an intention to shoot up Lathrop High School written on the wall of a bathroom within the school.

No further information was indicated in the message.

Fine expressed that while the threat is not believed to be credible, the incident is currently under investigation.

It is not clear at this time who wrote the message. Further information will be provided as it becomes available.