The Palm Beach County School District said Jupiter High School was placed on a "code yellow" lockdown for a short time Wednesday due to a bomb threat.
The all clear was given about a half hour after the lockdown.
No one was evacuated from the school.
The district says periodic safety sweeps are taking place to assure safety and security.
Jupiter HS is all clear. Periodic safety sweeps taking place to assure safety and security.
— PBCSD (@pbcsd) February 17, 2016