The OPP's Organized Crime Enforcement Bureau, with the assistance of the Thunder Bay Police Service, has charged four individuals with 10 drug-related offences following arrests there Friday.
The charges stem from a 16-month investigation focused on drug traffickers operating in and around the Thunder Bay area.
It concluded with the execution of three search warrants and the arrest of four people.
They included three Thunder Bay men, aged 59, 33, and 23, and a 43-year-old Thunder Bay woman.
During the investigation, cocaine, marijuana, morphine pills, Percocet pills, and drug paraphernalia were seized.
The street value of the drugs seized is roughly $60,000.
Also seized was $3,355 cash and $1,875 in pre-paid Visa cards.