Student detained for social media threat at Nevada Union High School in California

A 17-year-old student was detained on Monday for a social media threat related to Nevada Union High School in Grass Valley, California. The school briefly went into a shelter-in-place during the incident. The Nevada County Sheriff’s Office received the threat at 10:52 a.m. and detained the student shortly after. Law enforcement is searching the student's homes and vehicles and interviewing associates. A K-9 trained in firearms detection was brought to the school, but no weapons have been found. The investigation is ongoing, and officials urge the public to rely on official information.