Ontario Provincial Police (OPP) say "several chunks of cocaine" destined for area distribution was seized when a pickup truck was pulled over for a traffic stop in Penetanguishene.
Shortly after 9 p.m. Thursday, police stopped a truck with four occupants on Main Street.
During the investigation, officers say several large chunks of a substance appearing to be suspected cocaine was seized along with drug paraphernalia. As well, police allege they found open liquor in the truck.
The street value of the cocaine is believed to be more than $7,000.
The suspects are from Midland, Penetanguishene, Hillsdale and Tiny Township, and are between 20 and 31 years of age.
All face drug-related charges, three of the accused were also dinged with liquor offences, and one has a charge of obstructing police.