PALM BEACH COUNTY, Fla. — Police say a Palm Beach County school principal found a loaded handgun in a student's backpack while searching it for prohibited food.

According to an arrest report, Tameka Robinson, the principal at Santaluces High School in unincorporated Lantana, saw two students outside the school gates on Sept. 20 around 12:45 p.m.

They were receiving what appeared to be an order of food. It's against school rules for food to be delivered to school during lunch.

According to police, Robinson asked one of the students, a 17-year-old boy, to hand over his backpack so she could search it.

Police said Robinson found a small white and blue/green firearm inside the student's backpack.

The weapon was later identified as a Taurus Spectrum .380 caliber handgun and was loaded with five rounds.

School district police said the teen refused to answer any questions about the weapon. He was arrested for possession of a firearm on school grounds.