Prince Albert police are warning of the possible presence of the deadly drug fentanyl in the city.
Fentanyl is often mixed with other illicit drugs such as heroin, methamphetamine, cocaine and MDMA.
It is odourless and even a small amount can be fatal.
Police say illicit fentanyl is usually produced in a powdered form, often bright in colour and looks similar to crack cocaine.
It may be described as “pebbles” in its illegal form on the street.
Police say anyone witnessing what may be a potential drug overdose should call 911 immediately and remain on-scene.