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 promptly. Police and fire investigators spent hours at the site. The school stayed closed for the day. Authorities say no one was harmed. Detectives are still probing the cause. The teen is set to plead innocent. Community members expressed concern over the incident. The fire alarm went off shortly after the blaze began. Local fire services responded within minutes. The investigation will determine whether additional charges are warranted. The court appearance is scheduled for the near future. If convicted, the boy could face significant penalties. The incident has sparked conversation about school security.