Police say they're investigating the deaths of three newborns found in a Calgary home.

Neighbours told CBC News police were called Sunday to this house at 280 Taracove Estates Dr. N.E. in Calgary, where the bodies of four including three babies were found. (CBC)The infants were discovered Sunday while Calgary police were investigating the death of a 27-year-old woman at a home in the 200 block of Taracove Estates Drive N.E., police said in a release Thursday evening. The deaths are considered "suspicious in nature," they said.

The death of Harsimrat Kahlon is not considered suspicious, police said, but further testing is being done to determine why the woman died.

Autopsies on the newborns have been completed, but the cause of their deaths has yet to be determined, police said. Further testing is being done and it could take weeks or even months.

Police are not disclosing the gender of the babies, their ages or how long they had been in the home. No further details about this case will be released until tests have been completed.

At a news conference in Calgary, Duty Insp. Rob Williams, who read the contents of the news release, reiterated that police will not provide further details, including whether Kahlon had given birth to the babies or was their caretaker.

Despite the lack of information, police said they're confident this is not a case in which a killer is on the loose.

Anyone with information is asked to call Crime Stoppers at 800-222-8477.