The student was taken to the police station where he was released to his parents.
Police said the 8-year-old student brought a kitchen knife to school and randomly slashed fellow students, The Associated Press reported. He was released to his parents due to his age.
The threats have been taken seriously by police and the man is expected to appear in court on Tuesday with a view to being remanded in custody over the offence, West Copenhagen Police have confirmed.
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The boy allegedly cut three children with the knife in less than a minute. "We're not sure exactly why he came to school with a knife", Chief Perry Beise said. The case will be forwarded to prosecutors, KARE said.
The 8-year-old walked to the school office and put the knife down after the attack.
The injured students suffered superficial wounds that required stitches, according to KARE in Minnesota.
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An ambulance was called but was not needed. Pleasantview has students in grades kindergarten through fifth grade.
The incident happened about 7:15 a.m.as students were arriving for class, Watkins told the Star Tribune of Minneapolis. In December 2012, Adam Lanza, 20, shot his mother to death at their Newtown, Connecticut, home before killing 20 first-graders and six educators at Sandy Hook Elementary School. He said he didn't know if the boy had been bullied, or if he had mental health issues. School officials say they will work with the family of the attacker and law enforcement in dealing with the incident. Please know in situations like this the District's discipline policy is applied and aggressive students are not allowed in the building (s).
Warm Friday with rain heading this way
Due to more dry and windy conditions, fire danger will be high today , prompting a red flag warning for much of Texoma until 9pm. On the northern side, heavy snow will continue from Wisconsin to MI , with icy conditions reaching all the way to New England.