A 17-year-old student was pronounced dead after being found unresponsive at a school in Queen Creek late Tuesday.
The Maricopa County Sheriff's Office said crews responded to Canyon State Academy around 11:30 p.m. to treat an unresponsive person.
Emergency crews arrived, administered life-saving measures and took the student to a nearby hospital.
He was pronounced dead at the hospital.
The boy, who was not immediately identified, was a student at the school.
His cause of death was not immediately known.
The investigation is ongoing.