(CBS) — A newborn baby girl whose body was found in Uptown earlier this week was thrown from a ninth-floor window by her mother, police sources tell CBS 2.

Chicago police detectives have located the mother of the newborn. She reportedly has made a statement admitting she threw the child from her ninth-floor apartment late Wednesday.

READ MORE: Mayor Lightfoot Delays General Iron Permit To Move To South Side Over EPA Concerns

Neighbors in the Uptown neighborhood gathered for a vigil Friday where the baby was found, with umbilical cord still attached, in the 800 block of West Eastwood Avenue. The Cook County Medical Examiner’s Office said the girl died of blunt force trauma.

READ MORE: Chicago Night Clubs Gear Up For Looser COVID-19 Restrictions As State Prepares To Enter Bridge Phase

“I would have taken the baby — I’m 71,” building resident Katy Marie Gray tells CBS 2’s Mike Parker.

Police sources say the motive in the killing was family opposition to the pregnancy because the child was mixed-race. The mother is of East Indian descent; the father, African American.

MORE NEWS: Saint Joseph Catholic School Principal On Administrative Duty After Former Teacher Charged With Child Sex Crimes

Charges were expected Friday.