All three were treated and released from a local hospital, according to the Star Tribune in Minnesota.
After the 911 call came in at 7:15 a.m. Monday, Sauk Rapids Police rushed to Pleasantview Elementary, where an 8-year-old had come to school with a kitchen knife. No one was severely injured during the incident but the students needed a couple of stitches.
Beise said the boy was released to his parents.
Police say there is no indication the boy's parents will face any charges. He says the kid brought the knife with him to the school and became aggressive with it and struck three other students.
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The incident took place before school started. The parents of the three injured students chose to transport their children either home or to receive further medical attention. The case will be forwarded to the Benton County Attorney's Office.
The police chief in a Minnesota city where an 8-year-old slashed three other students with a knife says he wishes he knew why the boy did it. The other two are Pleasantview Elementary students. "We're not sure exactly why he came to school with a knife".
A number of armed police were despatched to the school in the town of Ishøj near Copenhagen after the student, who was previously expelled from the school, reportedly made the threats. There are approximately 790 students enrolled at the elementary school. He said he didn't know if the boy had been bullied, or if he had mental health issues.
School officials say mental health support will be available for students and staff who witnessed the attack.