Emergency companies had been referred to as to the blaze at Belle Vue Avenue, Ringwood, within the metropolis's east at 6.15pm yesterday.
Firefighters extinguished a blaze in a shed on the rear of the property however discovered the physique of a younger baby inside.
"The kid is believed to be a resident of the property," police stated in a press release.
"The circumstances surrounding the fireplace are but to be decided at this stage and the investigation is ongoing."
There have been stories a loud bang was heard earlier than the blaze however police wouldn't remark.
Police are interesting to anybody who witnessed the incident or has data to name Crime Stoppers on 1800 333 000.