A student at Palm Beach Lakes High School faces expulsion after a tip that the student brought a weapon to campus.
The student ran away when an investigation was launched and the school was placed on lockdown, according to the principal.
The principal says the student was discovered off campus and arrested and police found two guns in the area where the student fled.
The school was on lockdown for about ten minutes.
Police have not identified the student.
"Rest assured that the administration and faculty of Palm Beach Lakes High School are doing everything to ensure that your child is safe," the principal said in a statement sent to parents.