(Portland, OR) -- School officials say 15 middle schoolers in Portland, Oregon were sent home last week after eating marijuana edibles. A district spokesman said the students at Harriet Tubman Middle School most likely consumed the drug on Wednesday. Two eighth-graders are facing disciplinary action for providing the students with the edibles. It's still unclear if all the students knew they were consuming what the principal described as marijuana in "dessert snack" form. Officials said none of the students were hurt.