Campbell High school went into lockdown Friday morning due to an unauthorized individual trespassing onto the campus.

The lockdown occurred from 11:25 a.m. until 11:35 a.m. Friday.

School officials say he then proceeded to threaten students and staff before fleeing from campus. The Honolulu Police Department was contacted and an investigation was opened.

The school said in part: 

"The safety of your child is of utmost importance and a security plan has been initiated out of an abundance of caution. School will remain open with no changes to the schedule."

One parent reacted on social media saying that school should not be a dangerous place.

"School needs to be a safe place. That definition needs to be reinforced in the home. School is where we learn about opportunities...It saddens me that whatever the conflict was erupted into violence," said Sean Harflinger, a parent of a student.