COTTAGE GROVE, Ore. (AP) — A high school principal in Cottage Grove, Ore., says students used lab equipment to create an explosive sound in the school cafeteria, sparking rumors that a pipe bomb had exploded.
Cottage Grove police Cmdr. Scott Shepard says there was no pipe bomb.
No one was hurt in Monday's incident.
KVAL-TV reports (http://is.gd/e0woor ) that Cottage Grove High School Principal Iton Udosenata says two students are accused of taking a firing piston from a shop classroom without permission and setting it off in the cafeteria.
The piston is meant to help students create a fire in science and vocational training class.
The principal says the district has taken disciplinary action against the students, who were not identified.
He says they were trying to impress some students while scaring others.
Police are also investigating.
Information from: KVAL-TV, http://www.kval.com/