HARRISVILLE, Weber County (AP) — Kids on a school bus found ammunition from a .40-caliber handgun.

The magazine from a Sig Sauer gun had about a dozen rounds and was stuffed between a seat and a wall on a Weber School District bus.

Harrisville Police Chief Max Jackson says the bus had been carrying students from Orion Junior High School on March 13.

Lockers and backpacks were searched, but nothing tied to a gun was discovered.

Jackson says the gun's magazine is worth a lot of money.