At approximately 12:16 p.m., Carlton County Dispatch received a report of a bomb threat and an armed person at Cloquet High School. Law enforcement searched the high school and the middle school and found no evidence to substantiate the report, according to a news release from the police department.

McCallum High School has been placed in a "hold" while police investigate a bomb threat on the campus.

Dismissal was briefly delayed Wednesday after someone called in a bomb threat and said they were coming to shoot up the campus.