A fire in downtown Windsor.
Crews were called to a two storey house fire on Mercer Street at Wyandotte Street East just after 8 a.m.
Flames and thick black smoke could be seen pouring from the house and part of the structure has collapsed.
Fire officials say crews operated in a defensive strategy and multiple hose lines were deployed applying water from the exterior as fire was reported throughout the structure.
Exposures were being protected by addition hose lines.
The Windsor Police Arson Unit has been called in to investigate.
No injuries reported.
Drivers are asked to avoid the area.
.@WindsorFire1 battling a blaze on Mercer near Wyandotte. Police, EMS and EnWin also here. #cklw @AM800CKLW pic.twitter.com/iC39V4bzFf
— Rob Hindi (@rhindi800) December 15, 2025
Update: WFRS crews continue to battle the Mercer St. and Wyandotte St. E. fire. WFRS investigator and WPS arson team attending to gather initial evidence in an effort to determine origin and cause of the fire. No injuries reported at this time. Structure unstable,collapsing.*JS
— Windsor Fire & Rescue Services (@WindsorFire1) December 15, 2025