03/13/2026
PUBLIC SAFETY ADVISORY
Ongoing investigation
UPDATE #2 – LONDON, ON (March 16, 2026) – Members of the London Police Service (LPS), in partnership with emergency services, continue to respond to overdose incidents believed to be connected to an ongoing investigation into a potentially toxic supply of illegal substances circulating in the community.
Since the previous update, emergency services and community partners have continued to report overdose related incidents across the city. While investigators believe the initial surge has slowed, police remain concerned about the continued presence of the substance and the ongoing risk to public safety.
The investigation remains ongoing. Members of the LPS Criminal Investigation Division continue to assess information, follow up on reports, and work to identify the origin of the substance and those responsible in an effort to prevent further harm.
Public safety and community wellbeing remain priorities for the London Police Service. Members of the public are urged to be aware of the serious risks associated with the use of illegal drugs. Individuals are reminded to exercise caution, avoid using alone, have naloxone available where possible, and seek immediate medical assistance by calling 9-1-1 if an overdose is suspected.
As part of the investigation, police are appealing for dash-cam footage and residential or business video surveillance that may assist investigators. Areas of particular interest include the downtown core, the vicinity of Adelaide Street and Queens Avenue, and the area around the 500-block of Dundas Street between Maitland Street and Adelaide Street.
Investigators are especially interested in video footage captured on March 11, 2026, between 8:00 a.m. and 1:00 p.m., when activity in these areas is believed to have been at its highest. Police are also seeking information about vehicles frequently observed in these locations, particularly those interacting with multiple individuals. Video showing repeated short-duration interactions, unusual gathering activity, or individuals appearing to wait in sequence may assist investigators.
Anyone with information in relation to these incidents is asked to call the London Police Service at 519-661-5670 or Crime Stoppers at 1-800-222-8477. Information can also be submitted anonymously online to London Middlesex Crime Stoppers.
UPDATE # 1 – LONDON, ON (March 12, 2026) – The London Police Service (LPS) continues to investigate a significant increase in overdose related incidents reported in the city over the past 24 hours, including a concerning concentration of incidents in the downtown core.
Between 8 a.m. Wednesday, March 11, 2026, and 8 a.m. on Thursday, March 12, 2026, emergency services responded to 39 overdose related calls for service, resulting in several individuals requiring medical care.
Investigators believe a potentially toxic supply of illegal substances is currently circulating in the community. The investigation has been reassigned to the LPS Criminal Investigation Division, and officers are actively working to determine the origin of the substance and identify those responsible in an effort to prevent further harm.
At this time, the investigation remains active and ongoing. While a number of reports and tips have been received, investigators are continuing to assess and verify information as they work to establish the circumstances surrounding these incidents.
The London Police Service is urging members of the public to be aware of the serious risks associated with the use of illegal drugs. Individuals are urged to exercise caution, avoid using alone, to have naloxone available where possible, and to seek immediate medical assistance by calling 9‑1‑1 if an overdose is suspected.
If you call 9-1-1 to report an overdose, the Good Samaritan Drug Overdose Act may provide some legal protection for the person experiencing the overdose and the person seeking emergency help.
Public safety and community wellbeing remain a priority for the London Police Service, in partnership with emergency services and community organizations across the city. Police, fire, and paramedic services continue to operate within capacity and have resources in place to respond to both emergency and non‑emergency calls.
Investigators are asking anyone with information related to this incident, including dash‑cam footage, residential or business video surveillance from the downtown core that may assist with the investigation, to contact the London Police Service.
Anyone with information in relation to this incident is asked to call the London Police Service at (519) 661-5670 or Crime Stoppers at 1-800-222-TIPS (8477). Information can also be sent in online anonymously to London Middlesex Crime Stoppers.
ORIGINAL – LONDON, ON (March 11, 2026) – Shortly after 11:15 a.m. this morning, members of the London Police Service (LPS) Uniformed Division responded to an increased number of non-fatal overdoses in the downtown core.
Officers learned a suspect operating a vehicle in the downtown core, provided a free substance to a number of people before leaving the area. Several people who ingested the substance subsequently overdosed and required medical care.
Police are urging anyone who may have received the free substance or have been approached by someone offering the free substance to not ingest or use it and to call the London Police Service.
The investigation has been reassigned to the LPS Patrol Operations Investigative Section and officers are working to obtain a description of the suspect vehicle and driver.
Investigators are asking anyone who may have information in relation to this investigation or may have dash cam footage, residential or business video surveillance in the downtown core that may assist with this investigation to call the London Police Service.
The public are reminded to remain vigilant and if you are approached by someone offering a free substance to call 9-1-1.
The investigation remains ongoing, and more information will be provided as appropriate.
Anyone with information in relation to this incident is asked to call the London Police Service at (519) 661-5670 or Crime Stoppers at 1-800-222-TIPS (8477). Information can also be sent in online anonymously to London Middlesex Crime Stoppers.
Read the release on our website here: https://www.londonpolice.ca/news/posts/public-safety-advisory/
