Police found evidence Thursday in a creek in Gatineau, Que., they believe is linked to the attack on a woman found naked, bleeding and barely conscious in Gatineau Park last Sunday.

Kelly Morrisseau, the 27-year-old mother of three children who was pregnant with a fourth, died in hospital shortly after she was found by a man walking his dog early Sunday morning.

Autopsy results showed she was stabbed more than a dozen times and died of massive blood loss.

Gatineau police Lieut. Jean-Paul LeMay said investigators seized evidence from the creek near Rue Des Frênes, close to the southwest corner of Gatineau Park.

A canine unit and police divers were sent to search the creek after police received a tip from the public and a mobile command post was set up near the park.