Around 11:45 a.m. Monday morning, parents who had children in the Manhattan School District received notice that they would be sent home.
"The police department received a call from the school. They discovered an unsubstantiated threat written on one of the walls of the bathroom," said Manhattan Police Chief Dennis Hengel.
Manhattan Police and the Gallatin County Sheriff’s Office are investigating the incident.
"We’re going to do a thorough search of the school, of what went on, and of course we will continue the investigation," said Hengel.
A similar situation happened in the Belgrade School District last Friday.
Belgrade High School Principal Paul Lamb said the threat was written in the girls’ bathroom, and that although school has resumed the incident is still under investigation.
The two threats are similar, but Chief Hengel cannot say if they are connected.
"At this time we do not know if there is any coordination between the two events," he said.
The Belgrade School District has placed an extra police presence in all of their schools.
Manhattan School District Superintendent Scott Chauvet said school will resume Tuesday.
