A 15 year old student was arrested at Springfield Collegiate in Oakbank on Tuesday for allegedly robbing a gas bar during lunch hour.
The hold-up occured at 12:40 pm.  Police notified local schools and they implemented their lockdown procedures.
The investigation identified a suspect and he was arrested in his classroom.  Officers recovered stolen cigarettes from the suspect's locker.  A search of garbage cans at the school also turned up a pellet pistol, believed to have been used in the robbery.