WINDSOR, ONT. -- A person who suffered life-threatening injuries following a house fire on Church Street is still being treated for their injuries, Windsor fire officials say.

Fire crews were called to the home in the 400 block of Church Street around 9:15 p.m. on Sunday. Windsor police, the Office of the Ontario Fire Marshal and WFRS investigators are all looking into the blaze.

Police revealed Monday that a 59-year-old man died and a woman suffered life-threatening injuries.

Firefighters reported heavy smoke and fire conditions when they arrived on scene. The fire was eventually upgraded to a three alarm blaze and crews were forced to a defensive exterior attack including aerial ladders.

The man and woman were taken to hospital, where one person succumbed to their injuries, the second is still being treated. Police say the Major Crime Unit and Arson Unit are seeking information in relation to the incident.

Anyone in the area with surveillance cameras are requested to check the footage for any suspicious persons or activity around the time of the incident.

Anyone with information is asked to contact Windsor Police Service at 519-255-6700 ext. 4830, Crime Stoppers anonymously at 519-258-8477 (TIPS) or online at www.catchcrooks.com.

Correction:

A previous version of this article included an update from Windsor Fire and Rescue stating the second fire victim had succumb to their injuries, WFRS has since corrected the error.