Ontario Provincial Police in Orillia executed a series of drug raids on Thursday following a lengthy investigation and arrested 15 people.
Police say the warrants were executed at three residences.
Quantities of fentanyl, cocaine, oxycodone, LSD and Canadian currency were seized as well as a set of brass knuckles and a machete.
Seven people, three from Orillia and four from the Greater Toronto area, face a number of drug-related charges.
The remaining eight individuals who were taken into custody were released without charges.