Emergency crews were called to a report of a water leak and the smell of gas coming from the home in the 200 block of Tecumseh Street around 11:40 a.m.
Police say crews found a fire inside the home.
Sources told Global News, after that crews came upon a disturbing scene where they found the young woman and a baby dead.
The building owner said police were on scene for more than a day but officers have remained tight-lipped on the investigation.
The owner told Global News the woman who died is in her mid-20s and had lived at the residence for around a year.
No further information on the victims has been released.
On Thursday police called the deaths suspicious and said detectives from the Major Crimes Unit are investigating.
Anyone with information is asked to call investigators at 204-986-6219 or Crime Stoppers at 204-786-TIPS.
–With files from Global’s Brittany Greenslade