In a first, edible marijuana, in the form of a Rice Crispy treat, was found at The Dalles Middle School Tuesday. Three students were arrested: one for possession and two for delivery of marijuana, police said.

The Dalles Police Detective Sgt. Doug Kramer said two males and one female were arrested and their parents contacted. The students admitted to police that a Rice Crispy treat they had consumed was laced with marijuana, Kramer said.