Police say a 16-year-old student who brought a combination .410-gauge shotgun and .22-caliber rifle to Evergreen High School in Vancouver, Wash., planned to sell it to another student.

Police say the barrels had been removed and the gun was in a nylon case that the student left in a classroom Wednesday. A teacher looked inside, saw the gun and immediately reported it.

There were no injuries or threats.

Spokeswoman Kim Kapp says the teen was arrested for investigation of felony possession of a stolen gun, possessing a dangerous weapon on school grounds and unlawful possession of a firearm.

The prospective buyer was interviewed but not arrested.

Evergreen students were sent to Cascade Middle School as a precaution. The middle school and other schools in the area were locked down.