Sgt. Trent Crump said the backpack found Monday morning in a bathroom at Barry Goldwater High School near 27th Avenue and Rose Garden Lane was found to contain books.
Deer Valley Unified School District spokeswoman Monica Allread said the school has an enrollment of nearly 1,800.
Letter from the principal:
There is some information that I feel is important to share with you as we work together to maintain a secure campus and safe community for students. Barry Goldwater High School is currently being evacuated. All students are safely and quickly moving to the football fields. Phoenix Police are at the school investigating an unknown package located in a restroom on campus. As soon as Phoenix Police complete their investigation, we will provide you with an update.
Dr. Mike Andersen
The Associated Press contributed to this report.