First responders continue to investigate an "unknown substance" found in a west-Windsor home.
Windsor Police Service says a Major Crimes Branch investigation that began around 12 p.m. Tuesday led them to a home on Northway Avenue near Totten Street.
According to police, an "unknown substance" was found in the home and the Hazardous Materials Unit was called in to investigate.
Windsor Fire and Rescue and Essex-Windsor Emergency Services are assisting in the investigation.
Northway Road remained closed between Totten Street and Malden Road for several hours but has since reopened.