A group of 6th graders found what police later found to be a bag of methamphetamine outside the doors of their school.
The discovery was made at Pine City Elementary School at 11:35 a.m. Tuesday, with a school resource officer called to the school on a report of "found drugs."
The students had found a baggie with a "crystal type" material outside of one of the school's exterior doors.
The students immediately told a teacher, who in turn called the police.
"The contents of the baggie did in fact turn out to be methamphetamine," the Pine County Sheriff's Office said.
The children who had handled the baggie were helped to wash their hands, though the sheriff's office is asking parents to warn their children not to pick up items that may pose a safety concern.
At this stage, it's unknown who left the drugs outside the school.
Drug figures released by the Department of Public Safety on Tuesday revealed there had been a significant rise in the amount of meth seized by police in Minnesota, much of which is coming in from Mexico.
Pine City is located along I-35 between the Twin Cities and Duluth.