Police in Sonoma County arrested a student after she brought a gun to Casa Grande High School in Petaluma on Wednesday, the San Francisco Chronicle reported. The arrest occurred at the school.
Casa Grande High School as well as nearby Sonoma Mountain High School were placed on lockdown at about 11 a.m. while officers responded to the schools and searched for the student.
Officers located and detained the girl without incident and found an unloaded firearm inside her backpack, police said. No injuries were reported, the newspaper reported
The student was booked into juvenile hall on suspicion of possessing a firearm as a minor and possessing a firearm on school grounds, the newspaper reported.
Police are still investigating how the student obtained the firearm and whether anyone else was involved, according to the Chronicle. Anyone with information is asked to call Petaluma police at 707-781-1200.
This story was originally published by EdSource.