Police say they've recovered body of missing Winnipeg mom A body pulled from Winnipeg's Red River was confirmed Sunday to be that of Lisa Gibson, the mother of two children who died after being found in critical condition in their home earlier this week. Police said Gibson's body was pulled from the river on Saturday after it was spotted by an observer. "The investigation remains open and continues by members of our homicide unit," Const. Eric Hofley told reporters on Sunday. Gibson's family was requesting privacy, Hofley added. Gibson,32, had been missing since Wednesday when her two young children were found in critical condition in their house. The two-year-old girl and three-month-old baby boy died in hospital. Although there are reports Gibson's children died in the bathtub, police are not releasing the cause of death at this point despite an autopsy having being conducted. "There's been a lot of speculation out there in the media and in the public, however investigators have to ensure that every possible avenue has been followed up," said Hofley when pressed for details of the investigation. At this point the results of those autopsies have to be fully looked at by those investigators to determine if perhaps there are some other explanation as to the cause of this incident. There are reports Gibson was suffering from - and being treated for - postpartum depression, but exactly what transpired Wednesday remains a mystery. "Obviously that would play a part within the investigation but I can't confirm that at this time," Hofley said. Gibson's open Facebook page, which has since been restricted, was full of happy pictures of her two children: curly-haired toddler Anna and Nicholas. The page included a family photo that appeared to be taken at a hospital shortly after the birth of Nicholas in April, along with a proud birth announcement. The last posting was mid-June - a picture of Anna with the caption reading: "Man I love this kid."