QUEEN CREEK – A 15-year-old boy was arrested after a device made of drain cleaner exploded in an Arizona school yard Monday, injuring him and eight other students.
Pinal County Sheriff’s spokeswoman Lt. Tamatha Villar said the boy told investigators he had been building such devices with different chemicals and reactive agents to see what would happen. Authorities planned to search his home for a second device.
Villar said four other boys and four girls suffered injuries, including burns to their hands, arms and faces. All were treated at a hospital and released.
The boy was taken to a juvenile detention center and faces eight felony aggravated assault counts and other charges.
The school is in Queen Creek, about 30 miles southeast of Phoenix.