An investigation into an explosive device found at a Green Country middle school.
Authorities in Grove say someone planted the device in the boys' bathroom. The pipe bomb forced officials to evacuate the school. Students were bussed to safety and Grove's other schools went into lockdown while the bomb squad swept campus to be sure there weren't any more devices.
Brittany Busby, high school student: "Just everybody just wanted to pray because if some little kid's gonna do it once then they're always gonna be able to do it again. It is scary, if our school can't catch it once, what would make them not think they should do it again."
Grove Police are increasing security at Grove schools for the rest of the week. Investigators believe students are responsible.
They say whoever did it could face felony charges.