St. Thomas police are investigating after a reported razor blade was found inside a mini Mars bar received while trick-or-treating Saturday evening. Police say a person reported finding a piece of a razor blade inside the chocolate after visiting Margaret and Centre streets near the courthouse. The specific address where the candy was obtained is unknown. The chocolate and suspected blade have been turned over to police for examination. Police say the investigation is ongoing and no other similar reports have been received in St. Thomas. Police are reminding parents and caregivers to carefully inspect Halloween candy before it is eaten. Anyone who finds a suspicious item is asked not to consume it, and to keep the candy and packaging and contact police. Anyone with information about the incident is asked to contact the St. Thomas Police Service.