Anne Arundel County police said they found three unloaded shotguns in a student's car in the parking lot of Southern High School in Harwood on Thursday morning.
The guns were found in their cases, along with ammunition and a hunting knife, and police determined that the student had been shooting the guns with a friend on a farm recently and never took them out of the car. The 17-year-old boy was charged with a juvenile citation for possession of a deadly weapon on school property, police said. The guns were seized.
"There is no indication that threats of any kind were made at any point," county police said in a statement.
The car was searched at about 9:30 a.m. at the school, which is in the 4400 block of Solomons Island Road. Authorities searched the car after alcohol believed to belong to the student was found on school property.
In a letter sent home to parents and posted on the school's website, Principal Marc Procaccini explained the incident in detail "so that you can have accurate information to discuss with your student in a manner you deem most appropriate."
The student may face more discipline, he said.
"Possession of any weapon on school property – even in a vehicle – and possession of alcohol are clear violations of our Code of Student Conduct," Procaccini wrote. "In addition to any charges by police, appropriate actions will be taken by our school with regard to the student involved."