Marana High School cancelled classes on September 8 after the body of a student was found on campus earlier in the morning.
In a statement, the Marana Police Department said the individual broke into campus around 1:30 am Tuesday morning. Police arrived on the scene shortly after 6:30 a.m. A cause of death has not yet been confirmed.
Police said that this is an isolated incident and there is no danger to the public. Next of kin has been notified and the investigation is ongoing.
A representative from the Marana Unified School District said the school is expected to reopen on Wednesday.
There will be crisis response teams and additional grief resources available for students.
This story will be updated as more information becomes available.