An Amber Alert issued earlier this morning has now been cancelled.
Ottawa Police said the child was found “safe and sound” by officers.
The baby girl is receiving medical attention, police said.
Police said one person is in custody but did not reveal who.
Abby Mathewsie was last seen with her mother on Thursday in the area of Carling Avenue and Pinecrest Road, west of downtown Ottawa. Police got their first call about her around 11:15 p.m.
Police initially said the suspect in the abduction was the child’s grandmother, but then said they no longer believe Abby is with her.