The number of overdose deaths linked to "extremely potent” batches of fentanyl in Woodstock has gone up to four.
Woodstock police confirmed the latest overdose death over the weekend.
Since February 22, officers have been called to ten overdoses, four of which were fatal, police said.
"Extremely potent batches of fentanyl described as purple fentanyl and black/grey fentanyl are responsible for this surge in overdose related deaths," police said.
Fentanyl is an opioid painkiller that is more than 50 times stronger than morphine.
In light of the increase in fentanyl related overdoses, police are urging users not to consume the opioid while alone and to have a naloxone kit on hand. Naloxone kits can be picked up for free from local pharmacies.
Signs of a possible overdose include slow, weak or no breathing, drowsiness, choking, gurgling or snoring sounds, blue lips or nails, and dizziness. Anyone who witnesses a suspected overdose is asked to call 911, administer naloxone, and stay with the individual until emergency crews arrive.
Under the Good Samaritan Drug Overdose Act, anyone seeking help during an overdose is protected against drug possession and breach of conditions charges.