Erin Gray, 33, and her children Rachel Kaya Beckles, 11, and Robert Jr. Clarke, 5, were found overnight in Ontario, one week after disappearing from the family's home in the Montreal South Shore suburb of Châteauguay.
Châteauguay police are saying little about the discovery.
In a short news release, police said the woman and her two children were found in an unnamed location in Ontario.
Police said after checking out the woman's story, investigators concluded that no foul play was involved in her disappearance with her children on Sunday, June 22.
Contacted by CBC News this morning, Gray's sister Ashley said the family is happy and relieved that their relatives have been found.
"I want to see them, I want to talk to them, even. If i could just talk to them, maybe I could convince her to come back," said Gray's sister.
Police are not releasing any further details.