Six teenagers have been treated after they were found disoriented or unconscious at a Valencia bookstore, and drugs are suspected. Los Angeles County sheriff’s Lt. Robert Lewis says deputies went to a Borders bookstore at about 9:45 p.m. Friday after the manager reported finding the teens. Lewis says they appeared disoriented and two were either delirious or unconscious reports the Associated Press.

Lewis says the teens, who were not bookstore employees, indicated the problems were “self-induced.” County fire officials say the teens, who ranged from about 13 to 19 years old, may have taken some kind of drug or medication.

They were taken to a hospital and were expected to be kept overnight for observation.