Police: Student had explosive, knife at Washington middle school

KELSO, Wash. --

Police said a Coweeman Middle School student was arrested Tuesday on suspicion of having explosives and a weapon on school grounds.

Kelso officers said the student was in possession of a homemade explosive that contained a small amount of black powder. The student also had a knife, police said.

The boy was arrested, officers said, and they said there was no indication he intended to harm other students.

Police did not release further details.

Copyright 2010 by KPTV.com. All rights reserved.This material may not be published, broadcast, rewritten or redistributed.