Chatham-Kent police are also looking into the blaze at 50 Merritt Ave that broke out about 4 pm.
Crews from Station #1 and #2 responded to the call.
The efforts continue to determine the identity of the deceased, and the origin of the fire.
No more information is being released pending the investigation.
Anyone with information is asked to contact Constable Cole Abbott at colea@chatham-kent.ca or 519-436-6600 extension 262.