Island Health has issued a Toxic Drug Advisory for Campbell River.
The warning was issued yesterday and will be in place for a week.
Island Health says overdoses are increasing and the drug supply - inhalation and injection - is highly toxic. There is also an advisory in place in Greater Victoria.
If you suspect someone of overdosing, call 911 immediately and, if available to you, administer Naloxone.
Find information on overdose prevention and supervised consumption sites, drug-checking services and more at Island Health.