A 17-year-old boy will appear in court facing arson charges after police say he set light to an office at Cowra High before students returned Sunday. Classes were due to restart for the new week when smoke was spotted. Fire crews put out the fire swiftly. Police and fire investigators spent several at the site. The school kept closed for the day. Authorities say no one was injured. Detectives are still investigating the cause. The teen is set to plead not guilty. Community members shared concern over the incident. The fire alarm triggered shortly after the blaze began. Local fire services showed up within minutes. The investigation will decide whether additional charges are warranted. The court appearance is scheduled for an upcoming date. If convicted, the boy could face serious penalties. The incident has sparked discussion about school security.