Provincial Police in Sioux Lookout are warning the public about drugs laced with Fentanyl.
Police have received numerous calls but one recent report involved a woman using what she believed to be cocaine.
The victim became unresponsive and was sent to the hospital where she was treated for an overdose.
OPP say they believe there are more Fentanyl laced street drugs in Sioux Lookout.
They also say to call 911 immediately if you see any one you suspect to be suffering from an overdose.
