Toronto police are investigating a suspected case of arson at a downtown Toronto magic mushroom dispensary.Toronto Fire Services were called to Shroomyz Magic Mushroom Dispensary at 502 Yonge Street shortly after 3:30 a.m. on Wednesday.TFS said crews put out the fire quickly, and the investigation was taken over by Toronto police. No injuries were reported.Police confirmed that the fire is being treated as a suspected arson. There is no word on suspects.The investigation is ongoing.