Saskatoon police were searching the city landfill Monday for a dead baby.

The search began after police received tips from various sources last Wednesday about the birth of a child. Investigators located and interviewed a 17-year-old Saskatoon girl and believe the teen gave birth to a baby girl sometime over the Thanksgiving weekend at her home in the northeast part of the city.

They say the body of the baby was placed in a garbage container outside the home, and the contents were picked up by a city garbage truck and taken to the landfill.

Saskatoon police officers, forensic investigation expert Dr. Ernie Walker of the University of Saskatchewan and a canine unit from the Calgary Police Service began a grid search of the landfill Monday afternoon.

Police, who will be briefing reporters later in the day, said they had no idea how long the search would take.

Police continue to investigate how the infant died.