Waterloo Regional Police are investigating an incident involving a noxious substance in Waterloo.

On March 14, 2026, at approximately 11:25 p.m., police responded to a disturbance at a residence in the area of Albert Street and Central Street. 

Unknown suspects reportedly administered a noxious substance to individuals attending a party before fleeing the area.

Minor physical injuries were reported, and EMS attended the scene to provide medical assistance.

The investigation is ongoing and is being led by members of the Waterloo Regional Police Service’s General Investigations Unit.

Anyone with information is asked to contact the Waterloo Regional Police Service at 519‑570‑9777. Anonymous information can be submitted to Crime Stoppers at 1‑800‑222‑8477 or online at www.waterloocrimestoppers.com.