Ottawa Police are warning the public about a purple putty-like substance that may contain fentanyl.
The substance was found in Ottawa on Wednesday during the execution of a warrant at an apartment in the 100-block of Carillon Street.
Police have submitted samples of the substance to Health Canada for analysis. They are still waiting for confirming that it contains fentanyl.
Police are warning the public to take extra caution.
"This is reminder that there is no reliable way for the user or a peer to confirm what drug is actually being ingested," said Staff Sergeant Rick Carey. "Nothing can ensure a person's safety when they use illegal drugs."
There is more information on fentanyl at http://www.StopOverdoseOttawa.ca.
Police were investigating that address after several area residents filed complaints about activity from the apartment.
Fifty-five year old Steven Mavis was charged with possession for the purpose of trafficking of fentanyl, cocaine, crack cocaine, hydromorphone, dextroamphetamine, oxycocet, methylphenidate, and cannabis. He was also charged with possession of proceeds of crime under $5,000, and driving while disqualified.
Police say they are waiting on all drugs seized to be analyzed by Health Canada.
Mavis appeared in court Thursday morning.