The West District RCMP says improperly labelled pills seized in Carleton County last fall have been confirmed to contain furanyl-fentanyl.

In September, police seized a quantity of pills during an investigation into an unrelated matter near Hartland. Following a lab analysis, Health Canada confirmed the pills contained furanyl-fentanyl, a deadly designer drug.

The pills are described as light blue in colour and approximately 1 cm in diameter with the words "Percocet 5" written on them, according to Sgt. J.P. MacDougall.

Experts say furanyl fentanyl is a deadly synthetic opioid more potent than heroin and harder to detect.

The discovery of these pills is of particular concern because they were labeled as something other than what they are, Sgt. McDougall said. Those who choose to take illegal prescription drugs could be at risk of serious harm because they may be ingesting something other than what they believe they are taking.

The investigation is continuing.

Anyone with any information on the sale of these pills, or who has information that could assist the investigation is asked to contact the Woodstock Detachment of the West District RCMP at 506-325-3000

You can also provide information anonymously through Crime Stoppers at 1-800-222-TIPS (8477), by texting TIP212 + your message to 'CRIMES' (274637), or by Secure Web Tips at www.crimenb.ca