SALINA, Kan. (AP) — Salina police say a 12-year-old boy has been arrested following an incident with a toy gun on a school bus and an unrelated incident involving a knife on a playground.

Captain Mike Sweeney said two girls on a school bus Tuesday afternoon reported to the bus monitor that another student was playing with a gun. The bus driver was notified and police responded to the bus, where they confiscated a toy rifle cap gun. The boy was released to his mother.

Police say that a couple of hours later, officers responded to the Schilling Elementary School playground, where the same boy allegedly displayed a 4-inch blade, and chased and threatened to stab an 8-year-old child and two 9-year-old children.

Sweeney said the boy is in juvenile detention and could face charges, including aggravated assault and making criminal threats.