A human torso has been found floating in the Niagara River, southern Ontario police said on Thursday.

Niagara Regional Police announced that a female torso was recovered from the river in Niagara Falls, near the Rainbow Bridge border crossing.

Investigators said the discovery was not related to the ongoing investigation into the death of Hua Guang Liu, whose body parts were discovered in two Toronto-area parks in recent weeks.

Police said passersby spotted the floating torso on Wednesday and alerted officers. Police have not recovered any limbs or the woman’s head.

Niagara police said an autopsy suggests it belongs to a middle-aged Caucasian woman, who was the victim of homicide.

Investigators say the woman had a pierced navel and showed signs of having had at least one caesarean section.

Liu investigation continues

Liu, a spa owner and mother of three, was reported missing in early August and confirmed deceased after her partial remains were discovered along the Credit River in Mississauga’s Hewick Meadows Park two weeks ago.

Additional body parts, including an arm and a thigh, were found in an east-end Toronto park the following week.

Forty-year-old Chun Qi Jiang, Liu’s estranged boyfriend, has been charged with second-degree murder.

Peel Regional Police continue to investigate and are trying to determine where the murder took place. Some of Liu’s body parts remain missing.